We really enjoyed Sunset Trail. You access the trail from Grand Avenue park. It is surrounded by…read morehousing and open hills. Certain hills are definitely a challenge and others are easily just a downhill cruise. Overall Sunset trail a little but over a mile and it is a great work out!

Hiking spot with steep inclines and views of the valley. You can park at Grand Avenue Park, which…read moreis where you'll access the trail. Dogs are allowed and we did see a lot of small children hiking. There are certain portions of the trail that seem near vertical, but that's what makes this an effective workout. The trail does branch off to other short trails, otherwise, it's a loop. The trail is clearly outlined, although there are some portions that have some overgrown mustard plants. There's very little shade, so wear a hat & sunscreen. There aren't any water stations or bathrooms on the trail, although you're close enough to the park should you need those things.

Fun, easy trail for anyone! There's some elevation depending on which side of the trail you start…read moreon. It goes into a loop back into the parking lot. There are some adorable donkeys and horses you'll see, all rescued for a better life. :)

3.75 to 3.95 score, when compared to other parks and trails. Generally, if you start from north…read moretowards the hills, its easier to get around the loop, which ranges from 3.5 to 4 miles, depending on which trail you take. If you start from entry point head east and towards the community center - the run is all gradual up hill. 50% is paved and the rest is dirt trails with good to above average scenery. Located by a popular park, the area is busy, and there are many people on the trails. There are benches along the way, a short steep down hill or uphill depending on the starting point. Trails are clean, we'll labeled and based on the workout- from easy to moderate- but mostly an easy trail. Its a fast trail.for joggers walkers and runners. Pets allowed, and baggies for their poop are available. Negative? No bathrooms on the trails, didn't really see any animals that were close up and lack of true trail system . No real curves or extended challenges. But, positive, it is an active trail.

The park itself and cute and relaxing. It's not a playground, but there are several benches and a…read moreshort walk to the top. The top gives you a nice overview of the landscape and city far off in the back. It's not loud at all, the neighborhood is fairly quiet. The parking lot os very small with only 4 or 5 parking spots available. If your looking for the trail it actually begins half mile down the hill on the opposite side of the street. There's a road going slightly uphill and sign for the trail.

I enjoy looking at Chino and Chino Hills city lights during the evening and the distinct…read morelandscaping in the day time. I have driven up multiple times in the evening to relax. There is a nice picnic area to go eat and walk around.

Pretty beautiful park pretty cool place to take photos and have fun here pretty fun hereread more

Another great park in The Preserve; I've been looking for a playground with more traditional monkey…read morebars. This has a circular monkey bar station. Plentiful parking, clean bathroom, nice walking path with covered BBQ areas.

It was a little warm last weekend, but the weather was cooler in the early morning. I did the…read moreCanyon Loop, which was a 1.5-mile loop trail for about 45 minutes, and the view was so nice after the rain. It was a good start-up exercise, and I could enjoy the beautiful blue sky with all the greenery around. The trail is well-maintained and clean. I'm surprised that it's not crowded on the weekend.

I went to the Diamond Bar Loop after work with a few friends for Earth Day, and it's the perfect…read moretrail for a beginner runner like me. *The Difficulty: We did the shortest trail which is a 1.5-mile loop that took us about 45 minutes of mixed light jogging and walking. It was very manageable and peaceful. Difficulty-wise, I'd call this a 1.5/5 or 2/5, great for families and casual walkers. As someone who doesn't normally run (and gets bored of a stationary, treadmill view), I felt challenged in a good way. Jogging this had my heart pumping without feeling like I was dying. My friend who hikes Mt. Baldy for fun was with us, and he actually uses this trail as part of his cardio, so it's also great for more seasoned trailgoers looking for something chill! *The Trail: The trailhead is very well maintained, no trash in sight. We saw a few locals and families walking and everyone was friendly. It never felt crowded though we did go on a Tuesday evening. Dogs are welcome as long as they're leashed. The views overlooking the city are nice and there's two small bridges, a few stair sections, and several scenic spots near the top for quick breaks or photos. If you want more distance, there are connecting paths to explore too. There's also shaded areas near the beginning and end. *Parking and Bathrooms: There's plenty of free parking which is always a plus. We didn't go inside this time, but a friend mentioned the bathrooms inside the Diamond Bar Cultural Center are clean. The center itself is beautiful from the outside and there's even a gazebo near the left-hand lot where a family was having a picnic. Whether you're a new runner, walking your dog, out with the family, or on a cute date, this local trail is a great and easygoing way to enjoy nature!

Cute, clean park with a small playground and a large grassy area - great for picnics or a soccer…read moregame. There's not a lot of shade in the park though. The walking trail is pretty short. One end goes to Slate Dr., the other end heads up the hill to somewhere else - I didn't explore past the gate so I don't know where it headed to. There's a restroom and a small parking lot enough for about 15 cars. The entrance to the parking lot is only available on the eastbound lane on Soquel Canyon Parkway (you can't turn left into the lot from the westbound lane because there's a center divider). If you're coming from the 71 and heading west, make a U-turn on Elinvar Dr. to reach the lot.

Small but good to walk dogs specially for Akita. Until the next play time. Free parking and…read morerestrooms are clean.

It was beautiful!!!! So many things to look at and area to walk and places to sit. Not overly…read morecrowded...epic views!!! And it was an awesome family excursion.

Beautiful long trail! This was our first time here, and we came all the way from Lake Forest lol…read more We were not disappointed. What I love the most was that you can choose to just bike on concrete path, or you can ride on the dirt, rocky, some times a little muddy , and more challenging path. I was going back on forward between both path. They both head on the same direction and get together often. We parked at a friend's house. And I really didn't see much parking from the trail (Maybe there is, I just couldn't see any). But, there are two parks that the trail goes through, Riverbed Park and Park Riverside, right on Jurupa Ave. You can park there and ride the trail. Also, Ryan Bonaminio Park. Beautiful scenery. But the are a few miles where you'll see some homeless campsites. Not too close to the trail, but you'll be able to see them, this is only if you are going North East of the trail I believe (To the right), towards Tequesquite Ave, this is were the trail ends/starts! Great experience! Will definitely have to do it again and try it the other way!

I did this hike back in September and I thought it would be a great hike from what I saw on…read moreAllTrails. I was so disappointed with all the trash I saw on the trail. There was even a car motor dumped on the side of the trail, tons water bottles, and snack wrappers. We also saw what appeared to be a dead cat wrapped in a white sheet that was just dumped there. It gave us the creeps! It is a great workout with very intense inclines! I do not recommend it for smaller children. The trail is approximately 3.7 miles, out and back hike with an elevation gain of 938 feet. This would be a great trail if people would just pack out what they pack in. When we finally got to the end of the trail there was a very pretty view, but there were tons of energy drinks, beer bottles, cans, and broken glass everywhere. A very disappointing hike.

My jam. I live across the street so this is a super convenient trail to do before work. It's about…read more3-4 miles and the incline is decent so you get a good workout. It's not busy like the Claremont Loop. They just put up no parking signs so I'm not sure where visitors are supposed to park. It was beautiful this spring due to all the rain. It's back to its desert looking self so don't come here for the scenery. Its cool at the top cause you can see all of the Six peaks but otherwise, lots of brown. There is no shade so I tend to go early morning or in the evening. There are also no bathrooms on the trail, so stop by the gas stations on Temple or Starbucks if you need it. There are a couple ways to go up. The one to the left is a bit steeper and has a rockier path involved. The other is the very obvious dirt trail to the right. The right trail is not as steep to start off with but also doesn't seem as "never-ending story" as the trail on the left. This is probably due to the fact that you can see where the trail is going. On the left trail, there's like 5-6 mini hills and you can't tell which one you're on until the top. The trail on the left will take you directly to the stone bench (only one on the trail). The trail on the right will take you to the fork in the trail that either leads you to the stone bench (left fork) or towards Diamond Bar (right fork). Check out AllTrails.com for a trail map. Most of the reviews are describing the left trail.