Looking for a great trail in Diabio Foothils Regional Park, California? AllTrails has 8 great hiking trails, trail running trails, views trails and more, with hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers, and nature lovers like you. Ready for some activity? There are 6 moderate trails in Diabio Foothils Regional Park ranging from 3.5 to 13 miles and from 321 to 1,148 feet above sea level. Start checking them out and you'll be out on the trail in no time!

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hiking
no shade
1 month ago

The out and back trail listed is quite short and a little boring on its own. We added about 2 miles and a little elevation by taking a right on the Little Yosemite Trail she then just keep taking a right until you're back on Castle Rock Road. Beautiful scenery on this extra part, from forestry areas to wide open rolling hills. Bring sunscreen and probably don't do the extra loop on a hot afternoon in July, because there's zero shade in some parts.

Quick and easy loop to the end of castle rock, right before you start the climb the base of Mt. Diablo.

Amazing hike with great view. It’s an easy hike too.

Hiking with Angelo with 4x2 lake crossing/jumping

hiking
Sunday, September 30, 2018

only rated as hard because of the initial climb up Castle Rock, otherwise easy, this area off limits from Feb to July due to Peregrin Falcon nesting. Great little loop. almost five miles but because of the climb took two hours. We hit the trail at 6am and only passed one hiker on the way out. Nice bit of isolation. Lots of birds, Nuttals Woodpeckers, hawks, seen a skunk as well.

Saturday, July 14, 2018

Great trail! Beautiful scenery. Prepare to have dusty ankles and shoes at the end.

hiking
Monday, June 25, 2018

Little unknown park in Walnut Creek. You really need to go very early and you will have the park to yourself. We park down the street and enter before the ranger unlocks the gate. Nice little 3 mile morning hike to start your day. Lots of birds, deer we have even seen a bobcat.

hiking
Thursday, March 08, 2018

Easy peasy hike for all fitness levels. Only 200’ elevation gain which is nothing. HOT in summer but this is a perfect after work hike to do with my dog. Dogs are allowed off leash here, there’s grazing cattle and the usual wildlife that you find in the EB hills. After a rain, parts of the trail are really muddy so make sure you wear real hiking boots and not sneakers.

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