This by far was one of the hardest trails I've ever hiked. The incline is insane! The entire trail…read morewas uphill, I was breathless. But the views the entire time made me just as choked up. It costs $10 to get into the park, gates open at 8AM. There's a 12 mile hike, loops the site. And an 8 mile hike to the Summit (round trip). At the top there's a museum inside which has an exhibit and gift shop. I got a cute T-shirt for $18, they also had a showing of the history behind the summit and how it came to be. We saw a couple deers, baby coyote, various species of birds, lizards, and butterflies. During this time of year, majority of the trail was dead. I rarely saw any hikers, mostly bikers! Most visitors drove up to the summit for pictures and views. The hardest part was definitely going up to the summit! We cut our time by half on the way back down. It was steep, so we temple ran our way down. Really fun! I highly recommend going early in the morning or later in the afternoon to avoid the heat. Not a beginner friendly hike! Challenging. Trails not shaded. Park rangers are very friendly. Maps are also provided at entrance.

The Mary Bowerman Trail near the summit of Mount Diablo is a short .20 mile accessible trail. There…read moreis one accessible parking spot right at the start of the trail. The trail is paved and has a short incline.

Not going to lie, they are more entertaining than before definitely going to be coming more often!read more

Nice enough place. No cell service. Do Not purchase in park WIFI extremely spotty at best with well…read moreover 90 percent failure rate. Will be charging back the fee to my credit card provider.

Nice campground. It was March, so it was green and too cold at night, so no mosquitoes. There is…read moresome traffic noise from across the creek, but I didnt find it bothersome. (Hwy128?) I was in site 27 which was longer than it looked on the map or in the photos. I could see the creek from there. I'm not sure there is a bad site there...some had more shade, depends what you like. There are levels...I don't think you can see the water from the upper campsites, but more sun and partially sunny sites up there When alerted to a broken and stuck branch that could have been a problem, the rangers had it taken care of within half an hour or so. Staff was friendly and drove through regularly. The peacocks were fun... fearless, too, so we got a good look at those gorgeous birds. Quail, woodpeckers, a variety of birds. A great place for naps.

Disappointed. I recommend trying a different campground…read more Stayed mid June 2026. Construction was occurring. Water was out intermittently. After paying full hookup fees you have to pay an additional fee for their dump station use. ​