Great park three tiers to play with big slides and plenty other fun adventurous toys to play on not…read moremuch shade on a sunny day so be prepared to soak up the sun

Beautiful park nestled between the rocks by a stream. Kid loves it, good facilities, clean. Strong…read morerecommend.

February 2, 2020 Sunday…read more Accessible by Docent led tours only. To protect the sacred 10,000 year old Native American site and the pictographs. Warnings !!! Don't even try to go there on your own cuz there's a gatekeeper who is an ex special force military guy with night vision and all kinds of "stuff" to prevent people from going into the preserve and vandalizing this place. He lives on the property up on the hills not too far from the gated entrance . (The preserve is fenced in with locked gates ) We met up and got on the docent led bus at the Round Valley Regional Park parking lot. There were 18 of us , a naturalist named Kevin who led the tour and two interpretive student aids. Kevin was a great guide because he was energetic, enthusiastic and very knowledgeable about the environment. I could tell he is very passionate and loves nature and the wildlife . We got to see some fairy shrimps in the vernal pools which are endangered species . We also got to see a golden eagle, red tailed hawks, a kestrel, frogs. And of course the highlight for me was the cave art , pictographs. Awwwww it was so awesome to see pictographs inside the wind caves. Could be as old as 10,000 years old. IT was hella windy up there , well which is why there are wIndmills up there. Super super windy and cold. Bundle up if you are signed up on the tour to go up there. It was so awesome to see everything up there and gained new knowledge on biodiversity. Well worth the money. The tour was $40 a person but subject to change so check their website at East Bay Regional Park.

I went on a guided tour to see Vasco Caves. It's part of the East Bay Regional Parks and the only…read moreway to see them is to Sign Up and go on a guided tour. For Alameda County residents it's $30 per person, others pay a bit more. It's about 45 min away from San Leandro to Round Valley Regional Preserve in Brentwood. FREE parking there, 2 pit toilets. Leader Eddie was our guide w/ an assistant. They had a van that the assistant drove, while Eddie rode w/ the 20 paid ppl on the tour in a small shuttle. Bathrooms available at the parking lot at Vasco Caves, some picnic tables too. Hike was from 9am-2pm, there were lots of breaks and stories. We had a 20 min lunch stop. We hiked about 2.25 miles total, a few steep areas, but not hard. Saw some birds, lizards, tadpoles, sheep. Didn't see the fairyshrimp or tiger salamander - bummer. Caves are more like wind caves and not something you can go into. There was a very faint rock art w/ some old stuff & new stuff (graffiti). I'll have to go back maybe in a few years: Dec-March. April might be good for spring wildflowers, though not much when I went on Sun 4/5/09. No hikes in the Summer - too hot. Website here: http://www.ebparks.org/parks/vasco

This is such an amazing spot for fishing, and we genuinely enjoy coming here every time. The…read moresurroundings are beautiful and peaceful, making it a great place to relax and unwind. There are also plenty of animals around the area, which adds to the charm--you can walk around, take in the scenery, and really enjoy being in nature. While there's a lot you can do here, we usually come for the fishing, and it never disappoints. We've consistently had a good experience and always manage to catch something to take home, which makes each visit even more rewarding. Overall, it's a wonderful place whether you're looking to fish, explore, or simply spend time outdoors in a calm and scenic environment.

El mejor lugar para ir a caminar A pasar un rato tranquilo…read moreen la naturaleza Y también si quieres pasar tiempo en familia y hacer una bbq está súper genial el lugar % recomendable

We lived in Oakley and this park is just a couple of miles from our place. It's at the corner of O'…read moreHara and Adams Lane in Brentwood. This place is huge and has two sections for kids (small and big kids) The playground is safe and the floor has rubber matting in case the kids slip. There's also a small rock climbing section and a covered patio for birthday parties. You have to reserve the patio for any events though. This is a nice and spacious place for kids to play and run around.

The playground has a super cute red barn/farm theme with slides, climbing areas, toddler-friendly…read moresections, shaded seating, and lots of open space to run around Very clean and newer park -- perfect spot to relax after U-pick! Such a fun and easy family day in Brentwood

Round Valley Regional Preserve is a 5/5 gem tucked along the eastern edge of the Mount Diablo…read morefoothills. Marsh Creek runs right by the parking area, setting the tone for a peaceful start. The loop options strike a nice balance, not too tough, but enough variation to keep it interesting. Wildlife is part of the experience. You'll likely see cattle grazing, and if you're lucky, maybe a bobcat or a red-shouldered or red-tailed hawk overhead. Just plan ahead in summer. It heats up fast, so bring plenty of water. Simple, scenic, and quietly one of the best spots around.

Stayed at the nice trail camp. Clean bathroom. Nice picnic tables. No water and the park insured we…read moreknew. 2 faucets at the camp, but not working.

We love this dog park. The park reopened after months of being down due to the remod. There are two…read moreparks of the park, small dog entry and bigger dog park. The small dog park is a long concrete run until you reach turf. The big dog park has a nice concrete trail with benches and plenty of turf and wood chips to run to our hearts desire. There's plenty of dog bags for poop patrol. I, (Jackson) likes to steal the tennis balls but we always bring them back so the other dogs can play with them. There's also a water hose for the thirsty dogs. The only downside is that sometimes the gate isn't always open in the morning but overall this is our favorite place to run. Review made by the huskies: Jackson, Maya, Laika

This park has all the room to run for big dogs. Picnic tables and benches for you to sit on. They…read morekeep tennis balls and slingers to play fetch with your dogs. A really cool big tree my dogs had fun climbing on. Some rings to jump through. There's a smaller area for little dogs as well. Excited to go back. When I went they didn't have water working yet though, so bring water for your pups!

It's an awesome place to just sit and chill out for a minute in this part of town that's otherwise…read moresuper busy. I just got some food was pushed out of the parking lot by someone who wanted my spot so I couldn't sit to eat but here I was able to! This place is a beautiful little simple outdoor small wedding. Has a bunch of roses on the overhead bars it's really cute!! Hope this helps thanks for reading!

It's beautifully designed park, but why don't they take care of the roses? If I were living there…read moreand paying the HOA fees, I would definitely demand better maintenance of its namesake.

Nice new park, partial views of rolling hills in the Trilogy area. 2 play structures. One that's…read morequite large, another for the little ones. Sadly the zip line feature is already broken. Everything else is nice and new!