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    Fathom Five Divers

    4.8 (475 reviews)
    Open 7:00 am - 6:00 pm
    Updated 2 months ago

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    Julie B.

    Fantastic boat awesome crew gorgeous dive sites. Will is excellent at pointing out the small stuff Carlea in the office is so knowledgeable and helpful definitely recommend this dive shop

    Nicholas B.

    This was our 16th time diving with Fathom Five and just like it always does, it didn't disappoint. Our dive master was Shawn and our captain was Sergio. We've been on trips with both multiple times and they are by far the best we've had at Fathom Five and the island on the whole. Shawn's pre and post dive briefings are incredible. He goes super in depth on all the conditions of the sites and all of the animals we will see. He brings his iPad which he has some great examples of what to look out for. Sergio is incredibly personable, helpful and always seems like he enjoys being there. Fathom Fives amazing crew is definitely part of why we love diving with them. Our last charter we did a two tank twilight boat dive. We dove at lunch plate and Sheraton caverns, two amazing sites. We've done the Sheraton caverns countless times but it was totally different at night. The lights they gave us worked great. We would totally do this charter again.

    Keyhole along crater + dive gear

    Great experience diving with Fathom Five and an incredible day trip to Niihau, but there were several issues that left us disappointed. Positive aspects: -Wonderful diving and a memorable Niihau experience. -Clear passion for the sport and good underwater sights including sharks, dolphins, seals, tons of fish and more! -Bean bags on board were a great option to maximize the small space. -Guide's historical knowledge on the island and fish photography greatly complemented the diving day experience. Areas for improvement: 1) Staff attentiveness and on-board safety -We observed multiple instances of guests feeling sick, including frequent vomiting. It seemed staff were not consistently attentive or readily available to assist passengers in distress. -The two dive masters could have communicated and checked in more frequently with affected guests. -When safety concerns arose, there didn't appear to be immediate action to address mess or sanitize affected areas. We noted wastewater or ocean water being used to wash vomit, which felt inappropriate and concerning. -The captain and guide appeared preoccupied with other tasks (e.g., a sports game) rather than focusing on boat operations and guest safety. 2) Food storage and allergens -It would be helpful to have a clear system for noting food options, preferences, and any allergens upfront. -We also had concerns about some of the food storage and spoilage risk during the trip; Proper temperature control and handling of food are important to prevent potential illness. 3) Niihau day alignment (equipment and sizing) -We scheduled a pre-Niihau dive to align wetsuit sizing and weights, and were told our sizes/weights from the first dive would be used for Niihau. -In reality, wetsuit sizes and weights were not consistently accurate, which affected buoyancy and comfort during the Niihau dive. 4) In water safety -During the dive, there was a safety concern that was not properly addressed and there was confusing guidance for divers to go up on a line that had no boat attached when they had plenty of air left. Bottom line We loved the diving and the site, but the service and safety practices did not meet our expectations. Given these concerns, we'll consider alternative operators for future trips and recommend others verify attentiveness, safety protocols, and equipment management before booking.

    Michael H.

    What epic dives from the boat! I am a longtime diver and former owner of a dive shop in Monterey, CA. I will only dive with organizations that prioritize safety and positive experiences. In my experience of 30 years of diving on Kauai, Fathom Five and dive guides Linda Marsh and Julie Gardner have earned my respect Yesterday's dives with Fathom Five and Linda Marsh were no exceptions. We saw a treasure trove of critters! Let's see: octopi mating, white tip reef shark, whales, boatloads of turtles and fish, eels and ... a playful Hawaiian Monk Seal! As we were coming up from a safety stop, I turned as found myself peering into the face of a seal not 12" away from mine! We just continued to examine each other without moving. I highly recommend Fathom Five and Linda Marsh without reservation! I will definitely continue to dive with Fathom Five! #fathomfive #lindamarsh

    Sunset over the boat
    Ryley G.

    Such an amazing dive! Sergio and Reed made our trip a huge success and we were able to see so many turtles and even an octopus. Thank you!!

    Basking turtle
    Mark P.

    Everything went well diving with Fathom Five from reserving, paying, checking in, sorting gear, meeting up with dive masters at dive sites, refreshing after 8 years away, and actually diving. The gear they offered for warmth was perfect for the water temp. The wetsuits were clean, fresh, fit well and performed properly. The air and Nitrox were as promised. The gear was clean. The refs and gauges worked well and did not look over used or underserviced. It was good gear. The lamps provided for the night dives were great wrist mount with adequate light strength without too much weight or bulkiness the dive masters briefed their dives and followed their dive plans. Diving in Kauai with Fathom Five was a pleasure. (I had been away from diving and instructing for about 8 years to upgrade body parts like knees, hips etc. my dive buddy/ goddaughter was freshly certified. Between us, having a good Divemaster that could keep an eye on us and catch issues was very important to me. They exceeded my hopes and made it all good.) Thank you Jeannette, Bill, Janice and Linda. Truly.

    Dusty B.

    My girlfriend and I did a discovery dive with Devon yesterday. We got super lucky, it was just us and her. Which was great for my girlfriend because she was having a little anxiety about clearing her mask. Devon was SO supportive, so comforting, and a blast of a human. She felt like a long time friend from the past showing us some really cool stuff. I couldn't recommend her more! Thank you Devon for such a great experience. Be our friend forever!!

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    Incredible experience every time! Attentive and professional staff, great dive sites, new equipment. Best dives I've had on Kauai by far!

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    4 years ago

    Great experience! Linda was awesome. Definitely will dive with Fathom Five next time I'm in Kauai!

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    Fathom Five Divers Reviews in Other Languages

    Ask the Community - Fathom Five Divers

    Can individuals without a certification go diving?

    You do have to be certified to dive. We were asked for our certifications upon arrival. Didn't matter if we were advanced or beginner.

    View All 2 Questions

    Review Highlights - Fathom Five Divers

    The first dive was great, and Julie obviously (with 1000's of dives under belt) was full of new information.

    Mentioned in 35 reviews

    Read more highlights

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    Fathom Five Divers - boatcharters - Updated May 2026

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