A couple weeks ago, we finally made it to dinner here, and I'm impressed. We started with apps: fried oysters (because I always like), and the coconut snails. Let me say the snails were a highlight. Surprisingly tender and flavorful. Sometimes, snails can have a livery / dirt / bitter flavor, but not these. And we were lucky rice wasn't on the table, because we would have stuffed ourselves eating rice with that wonderful sauce. Next comes the boil itself. My wife insisted on "no-spice" (ugh). But I got a side of the house sauce with med-spice. Let me tell you. That sauce. Again, good thing no rice on the table, because I'm already drowning everything in that sauce. Esp the garlic bread. The seafood was fine. You're not at the pier / Hawaiian beach / HK wet market fresh off the boat & straight into your mouth scenario. But fine. We're planning to be there again tomorrow. BTW, that boy scout selling popcorn a few years ago? He made it. He's now an Eagle Scout. Thanks again for the icy refreshing drinks on a hot day. read more

The Submarine Crab - Combo 2. Side of medium spice house sauce was spectacular. - Cajun/Creole Near Me - Diamond Bar, California

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We had a great experience at Submarine Crab! We ordered the Combo 1 with head-on shrimp and mussels, tossed in the Torpedo sauce with a mild spice level, and it was absolutely delicious. The seafood was fresh, the sauce was packed with flavor, and everything was cooked perfectly. Our server was the only one taking care of the dining room, and she was incredibly attentive, friendly, and helpful the entire time. Even while staying busy, she made sure we had everything we needed and checked on us regularly. Great service like that really elevates the whole dining experience. We'll definitely be back the next time we're in the mood for an amazing seafood boil! read more

They pack your take out with all the essentials (bib, table cover, gloves, lemon and salt). Ate in the restaurant before too and never had any issues. Highly recommend if you want a solid Cajun place to dine in or dine at home. Location: next to Albertsons. Plenty of parking. read more

Trying this restaurant for the first time. Came here for lunch with my family. Restaurant was nice and clean, both inside and outside. I love their submarine theme decors. The staffs here are friendly and attentive. Being here for the first time, they were able to explain how things work. The food here is similar to Boiling Crab and Kickin Crab. You order your seafoods by the pound, then select your sauce. They have set combos you can order from, which makes ordering very easy. We got the Combo #1. We selected Shrimp, Clams, and Mussel. We opt for the Torpedo sauce, which is a combination of Garlic Butter, Classic Cajun, and Lemon Pepper. We also added the Fish and Chips. We didn't wait long before our foods came out. Foods were delicious. The Torpedo sauce goes well with the Seafoods. We enjoyed every bites. The Fish and Chips were also very good. We love it here. Would definitely come back again in the future to try their other items. read more

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2/14/2026 Valentines Day This review is live as I am still at the location. Yelp said it's closing in 51 mins I would give it a negative star if I could. Long wait list, many tables open since 30 mins before I wrote this review, but no one cleaned the tables so they could call ppl in. They let new people came in and wrote their names down on the wait list without telling them that they can't take walk ins anymore. Some people were smart enough to cross their names out and left. It's looks like they're understaffed BUT they were still taking to-go orders. WTH! VERY BAD SERVICE! read more

The Submarine Crab - Cajun/Creole Near Me - Diamond Bar, California

I was eager to try this place and it was easy to make a reservation as well. The service was quick and attentive and the place is very clean. As for the food, I give 3 stars since it is definitely fresh seafood, however the taste was way too salty for me. I tasted more saltiness than the garlic butter and their Cajun sauce. The garlic noodle is pretty decent. The portion is less than moderate when it says on Combo B that includes 4 sausages, literally it's 4 small pieces of sausage. Thank you for the service though! read more

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This restaurant was ok, I felt like I was scammed for paying the " premium combo " I picked snow crab leg for it and there was barley any crab as you see. The service could've been better but it was manageable . read more

The Submarine Crab - Cajun/Creole Near Me - Diamond Bar, California

We had the Combo 2 which was more than enough for two people. The peeled shrimp, crawfish, and snow crab were fairly delicious and juicy. We came when they have the live crawfish as opposed to frozen, and it probably made a world of difference. The spicy Torpedo sauce was also pretty good blend of flavors, a little spicy, tangy, and sweet. Service is very professional and attentive. Even had a cool smokey bubbly hand wash cup. Definitely will be back if we are craving some seafood boil. read more

My Fiancée and I moved close by and needed to find our new seafood spot and boy is this it! The hospitality is top notch and the food is even better. We get the crawfish, shrimp, and snow crab with the torpedo mix, medium. All very delicious and cooked just right. Special thanks to Jenny for making our first dine in experience here a great one! read more

The Submarine Crab - Combo 2 - Cajun/Creole Near Me - Diamond Bar, California

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Jane is such an amazing server. It was our first time at Submarine Crab in Diamond Bar. Her service was unparalleled. So kind, so attentive. It was a great experience for my birthday! You gotta try Combo 3 with Shrimp and King Crab as well as the Garlic Noodles! Incredible food, service, and ambience! read more

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This place isn't bad. There are other places I prefer as the sauce at those other places are better. However they do give you plenty of sauce on the side. They also have liquor here which is a plus. I would say I was pleasantly surprised with the service. It was great. Unfortunately we came at the wrong time. Apparently crawfish was not in season and was frozen. We missed live crawfish by a day. The clam was a little mushy and not that great. But the shrimp and Cajun fried rice was good. I originally was going to give this place 3 stars but service was on point and they served Tito's with soda where most similar places have beer. And the hand wash was plus! The place was clean and kept up very well. read more

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It so amazing. Afordable price, the sauce is so tasty. Clean place and restroom. I will be back soon later read more

I can't believe this place opened AFTER I moved out of my parents' house in diamond bar! I always be craving seafood broil. We saw a reel on IG and decided to try it out since it was right next to my mom's. We went on a rainy Friday night and it wasn't too busy! I like that they play sports on the TV! The servers were super kind and food with delicious. The price is not bad either. We spent approximately $185 for 6 people. Shrimp is always my favorite and the cajun fries! Will definitely come back here to get my seafood broil fix. read more

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10/10, not the typical sauce though it was a little sweet, not sure what that was but it was still amazing nonetheless!!! All of the girls working 4/10 were amazing! They were sweet, professional, and quick. Jane and Kennis so sweet, so kind, loved them. It's nice in here, they play like a lofi mix of the new hits. would come again i also wanted to add this super cool thing they do at the end !!!! i've never been so entertained. read more

Here's a polished version of your review while keeping your tone and enthusiasm: Way better than Boiling Crab, in my opinion. The Torpedo sauce is my favorite--super flavorful, and the seafood is incredibly fresh. So many spots don't even use live seafood, but this place does it right. The butter garlic clams are something I literally dream about, and I always take extra Torpedo sauce home to pour over rice. Game changer. I also have to get the fish and chips--tasty catfish with Cajun fries. So good. Sunny was my server and she was so sweet and attentive. Service is always on point. They regularly have sales and a solid happy hour. This place is definitely my go-to! read more

The Submarine Crab - Cajun/Creole Near Me - Diamond Bar, California

Great delicious seafood with friendly, helpful service. We hada late dinner after work. Even though there were only two tables in the restaurant, the friendly server did not rush us. She was really helpful with the order and attentive. The seafood pasta was super yummy and flavorful; it matched the fries. We also shared a combo meal, and that was like a feast for 5!!! All the fresh seafood marries well with the house sauce. We were surprised and amazed! It matched the fries. We also shared a combo meal, and that was like a feast for 5!!! All the fresh seafood marries well with the house sauce. We were surprisingly amazed. This will be a perfect place for a group gathering on a game night. Enjoy the seafood and some ice-cold beer! read more

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High quality seafood boil and well worth the price! We got the combo 2 seafood boil, a dozen raw oysters, garlic noodles, and coconut snails for 3. I would definitely come back when in the area. Servers are attentive and friendly. And there is hand wash show! read more

Service was great. Food was generally okay, but the dishes weren't covered in sauce, so they cooled down faster than at similar places. I wouldn't recommend the lobster tail--it seemed either overcooked or not fresh. Also, the 4 sausage is just 4 small pieces, which wasn't what my friend and I expected (and I now see others have mentioned the same). I later found out the restaurant had a temporary closure in October 2025 due to a health code violation, which I didn't know before visiting. Taking everything into account, I don't think I'll come back... read more

The Submarine Crab - Combo 2 (2 corns, 2 potatoes, 4 sausages included) - Cajun/Creole Near Me - Diamond Bar, California

This place is AMAZING. The Combo deals are always so worth it! It just depends on what you want inside for what the combo deals are offering. The flavor (torpedo) is SO GOOD. I definitely recommend that! As well as the Cajun fries. (If you're a crawfish lover PLS COME HERE WHEN ITS CRAWFISH SEASON!! ITS WORTH IT!!) They also have mouthwash and this cute way to wash your hands after your meal that has bubbles flowing out from a glass container! Super cute! Staff is super nice and friendly. They're very attentive and caring. Cleanliness and ambiance of the place is perfect. Super clean and relaxing while just chowing down your seafood boil. 10/10 This place ALWAYS a go to for me! read more

The Submarine Crab - Cajun/Creole Near Me - Diamond Bar, California

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This was our 3rd time here, was absolutely amazing! Service was amazing and fast! Staff is super kind and helpful. The food was delicious and tasted super fresh. OMG the passion fruit mojito is AMAZING! By far my favorite drink ever! Brought my sister for the first time and she absolutely loved everything! 10/10 experience! read more

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Called ahead for a takeout order. Staff were friendly and got our order easily, and didn't want too long for our order to come either. Inside is clean and plenty of space. Got their combo 1 with head on shrimp. Overall the flavor is pretty solid. I feel like the shrimp were overcooked slightly. Pricing is slightly on the high side but I still feel like it's a good local spot for a seafood boil. I'd come back to try again but would have higher hopes next time. read more

I love this place. The decor is better than the prior crawfish place that was in the same location. Plus, this place is a real seafood boil restaurant, not just crawfish like the prior business. Service was awesome, atmosphere brighter, and the best part, fresh seafood. I ordered combo #2, and it was plenty enough for me and my son, and we ordered cajun fries and clam chowder. I forgot to ask the staff, but I think the clam chowder was homemade, but delicious. You get a free small dessert, and a surprise at the end of the meal that is Insta worthy. If you are in the area or just visiting, stop by and try some delicious seafood boil. read more

I am obsessed with this place. The servers are starting to recognize me. Clean and simple with a submarine theme. I can't get enough of their food! The seafood is really fresh. Head on shrimp is PLUMP (The clams are almost always live) and the SAUCE. I could bathe in it. If you like the garlic noodles and Cajun fries are amazing too. If it's just you- you can get a lb of shrimp and some white rice for under $25! That's a steal for Cajun boil. read more

The Submarine Crab - Combo 2 (2 corns, 2 potatoes, 4 sausages included) with shrimp, clams, crawfish, and crab legs (when they had a B3GO deal) - Cajun/Creole Near Me - Diamond Bar, California

Best place to get seafood boil now! Ordered to go, ready in 15-20minutes. Service was quick and nice! Inside was very clean. We ordered the combo 3, it was enough to feed us 4 with leftovers. For the sauce we got the house one, super good! They have a lot of sauce too, not like other places which always skimped on the sauce. Overall, it's a great place to try! P.S. sorry for the bad picture, we all ate it right away because it smells so goood!!! read more

The Submarine Crab - Cajun/Creole Near Me - Diamond Bar, California

We love coming here as opposed to other seafood boil places because you don't have to wait ridiculously long to be seated. You are welcomed and served right away. Staff is friendly. Jane is always so kind and nice and makes sure we are well taken care of. She is usually there when we go and we appreciate her menu recommendations. The prices here can't be beat either. Food is 10/10 good flavor all around. We are definitely turning into regulars here. read more

The Submarine Crab - Cajun/Creole Near Me - Diamond Bar, California

The food is great the service even better and the price is great! There's alot of fun things to look at inside and fun little surprise ending! I won't spoil the fun! Highly recommend! read more

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it was all very, very good. The popcorn chicken is great. The fish and chips probably my favorite with sweet potato fries. The cajun stir fry corn is also very good yet, I ordered spicy. I should've ordered a medium or mild. The fried oyster was very good again. I ordered that spicy. It should've been medium or mild just because I like to adjust my spicy this while I'm eating you know but it's all super good love this place and this will not be my last time ordering for sure. read more

I'm so glad I found this location of Submarine Crab! I have held off from eating local shrimp boil because nothing compared to the location in Garden Grove. I'm glad they expanded and opened this location in Diamond Bar! My fiancé booked a Valentine's Day dinner reservation for us at 7:30pm. We arrived 10 minutes early and we're greeted and seated right away. The restaurant is quaint and straight to the point - no frills, clean and simple theme decorations. The restaurant seats about 15 tables. Once seated, we reviewed the menu and ordered just enough food so that we were full and no left overs - sweet potato fries, combo 2, and drinks. There is a free beverage when you follow them on IG or make a post and it is so good! I can't remember the name of the drink...Captain something. Very refreshing and cool drink with dry ice for visuals. The sweet potatoe fries were a good palate cleanse from all the garlic, although I definitely want to try the garlic noodles next visit. Once we had our food it was time to get serious with a bib, no gloves because peeling shrimp heads requires some finger grip. The torpedo sauce is a mix of all the seasonings (like the whole shabang but better, if you can imagine that). The shrimp was big, juicy, and delicious; so were the lobster tails. The drinks were very creative and had well thought-out ingredients and presentation. Definitely a nice touch. For Valentine's Day, we were given a complimentary bottle of wine which was such a nice gesture. We left here satiated, happy, and filled with love. Overall, a great option and price point for Cajun Seafood Boil. The quality and flavor are so worth it! read more

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Food is mid here, but they try to make up for it with a cool experience and good pricing/deals. If you are not too particular about your Cajun food and want to try something new, come here. Otherwise, take a pass. The servers are fast and really nice and they have this cool soap bath after you finish to wash your hands. Chill vibes to come with friends. read more

The Submarine Crab - Cajun/Creole Near Me - Diamond Bar, California

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Very friendly service. The seafood was hot and fresh. The seasoning was really good and they have the fun bubbles at the end to wash your hands . Came at an odd time so we were the only ones there would definitely come back read more

The Submarine Crab - Mussels crayfish and shrimp - Cajun/Creole Near Me - Diamond Bar, California

Exceptional food! Service professional and excellent! Ambiance worm and family friendly! Great job guys thank you! read more

Absolutely delicious Portions are great Flavors are on the spot Must try if crab boil is your thing read more

Been here twice and enjoyed myself thoroughly both times. What keeps me coming back is their torpedo sauce. It's a unique flavor compared to other seafood boils in that it trends more on the sweeter side, which makes sense since this restaurant serves everything with a Vietnamese twist. This also shows up in their variety of side dishes and entrees, so if you come with someone who may not be a big fan of seafood, they have options. I also enjoy they have a selection of cocktails and generous happy hour deals. First time I came I shared a Combo 3 and the four of us were able to almost finish the entire pot. This time I got a pound of shrimp and a pound of their snow crab legs and I couldn't finish! Very big portions. Shrimp was not overcooked, easy to peel, and bouncy. The crab legs didn't taste frozen and were very succulent. They give you scissors and a cracker. I also added potatoes, but avoided the sausages as one sausage is actually just a slice so if you're ordering two sausages you're only getting two small slices. Each table comes with gloves and bibs. We also tried their coconut snails, scallops, garlic noodles, shaken beef, and fries. Nothing disappointed. This place seems family run. They used to have a server who did magic tricks but I think he moved so if you see older reviews mentioning magic, that's why lol Plenty of parking in this plaza. Did not have to wait long to get a table either time, but did make a reservation because I had a big party the last time. My only suggestions for improvement is to make the sausage portions a little more worth their a la carte price and maybe make the playlist bigger because we heard it repeat a few times. Would come back again! read more

This is my new favorite Cajun spot! The quality of the seafood is good and the prices are reasonable to most Cajun restaurants. The clams are massive and one of my favorite things to order. The garlic noodles and fries are great accompanying sides. They soak up the yummy sauce from the seafood boil. The staff here are so friendly and welcoming. The last time we came, they asked us if we were celebrating any December birthdays. My husband's birthday was earlier that month. They checked his ID and gave him a complimentary cocktail on the house. The cocktails are strong! I love how this restaurant is close to home. Parking is easy in this plaza. read more

I finally got the opportunity to try the Cajun-style seafood boil at Submarine and it did not disappoint. My original plan was to try both the shrimp and crawfish, but I got talked into just giving the crawfish a chance. They were plump, spicy and tangy, and were consistently juicy. I'm used to smaller crawfish that are doled out to you in large quantities. There were maybe 8-9 crawfish in the bag, but they were the size of jumbo jumbo shrimp. I enjoyed every bite. The server, who I had last time, was as helpful as ever and the place was a bit fuller this time so that's good to see. I can't wait to try the shrimp next time. read more

The Submarine Crab - Oh, what's on your mind? They're going to put me away this time. Medium () Fish N' Chips from #submarinecrabdiamondbar - Cajun/Creole Near Me - Diamond Bar, California

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Cute restaurant with a marine decor. Staff is super friendly and do a wi Saul job of explaining the menu and specials. They also think about your spiciness level and make recommendations. Garlic noodles were delish and the seafood boil had really good flavor. We got medium spice level with torpedo sauce - a mix of all flavors. Good spiciness and garlic butter flavor. Shrimp is meaty and tender. The crab had a clog of amount of meat and cooked well. Their cocktails are also very good. There's also a cool jug of foamy hand cleaner that they bring at the end of the meal. Who knew cleaning hands would be fun! read more

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It was my first time visiting, and the food was absolutely delicious. The location is easy to find, parking is simple, and the prices are very reasonable. I ordered online, which was super easy, and the service was impressively quick. I'll definitely be coming back! read more

The Submarine Crab - Cajun/Creole Near Me - Diamond Bar, California

Submarine Crab is a fun and very casual spot. It offers many different seafood options and has good flavor. My party got Combo #1 and it was enough for 3 people if you are not very hungry. The mild spice level is very mild and had no kick at all so highly recommended getting medium or spicy if you want a kick. The shrimp was meaty and the sausage and potatoes were tasty. I did not try the corn but my friends liked it. At the end of the meal, you get a fun and unique handwashing experience - like a volcano of soft soap that actually cleans your hands! The gloves and bibs provided were sufficient and easy to use. Currently, there is a happy new year offer where you get free white or red wine (1 glass per person). Our waitress was very friendly! And the restaurant was clean! :) read more

The Submarine Crab - Combo #1 - all shrimp - Cajun/Creole Near Me - Diamond Bar, California

Great new place for seafood boil! We ordered the Combo #3 and it fed four of us very well. Shrimp was plump and juicy, and the snow crab legs were cooked well - sweet and NOT too mushy or salty. Got the "torpedo" seasoning, which is everything mixed together, and the flavor was excellent! We also got medium spice level which had a really nice kick without overtaking the flavor. (If you don't like spice/heat, get no spice or mild.) Also tried the garlic noodles and they were delish! Added some of my crab to it - yum! There's a special right now where if your b-day is in January, you get any drink free - including cocktails! One of our group had a January b-day so the "Blue Lagoon" was chosen and enjoyed. My understanding is that this is every month. So I definitely plan to come back in my birthday month. Also want to come back and try the Cajun fried rice and the pasta. Service was excellent and the manager came over to check how things were tasting. Other servers were helpful with questions and kept our water refilled. There was also a cool way to "wash" our hands with a bubbling carafe of soap. The place is a good size and can accommodate larger parties by putting tables together. I would make a reservation for that. It's fairly new, but there was steady business. There's also a happy hour from 2-6, M-F. As more people learn about this place, I can see it getting busier. read more

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The neighborhood was in need of a seafood boil spot and we are so excited that Submarine Crab has finally opened! We ordered Combo 3 and was the perfect amount of food for 4 adults. The shrimp and snow crab were delicious in the Torpedo sauce and our server even gave us a bowl of extra sauce on the side for dipping -- which I definitely used. I find the sauces at other spots way too salty but the sauce here is perfectly buttery and flavorful. The most unique thing about this spot is that the seafood combo is served in a large pot, making it a great destination for a family lunch or dinner. Lastly, I recommend the garlic noodles here. They are the best I've had from a seafood boil restaurant. read more

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