Castlerock Loop via Fairy Lantern Trail

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Diablo Foothills Regional Park

Castlerock Loop via Fairy Lantern Trail is a 3.6 mile moderately trafficked loop trail located near Alamo, California that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options. Dogs are also able to use this trail but must be kept on leash.

Length3.6 miElevation gain593 ftRoute typeLoop
Dogs on leashKid friendlyHikingNature tripsWalkingBird watchingRunningViewsWildflowersWildlife
Description
Waypoints (0)

The gates open at 7:30 AM. There is ample parking and facilities at the trailhead. Go clockwise for gradual uphill or counterclockwise for best downhill footing.

Weather
UV Index
Daylight
Reviews (70)
Photos (576)
Recordings (74)
Completed (248)
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Faye Vahedian
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Hiking

Beautiful sceneries especially at this time of yhe year. Ample ups and downs with gorgeous view of Mount Diablo.

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Cassie Castrejon
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HikingGreat!

Wonderful trail at sunset, and lightly trafficked on a Sunday evening. This is a shared path with bikes, cows and some horses. There is ample parking lot. Large gravel lot at the trailhead and a small paved lot to where the directions route you. Lots are open 7:30am-7pm and park curfew, is 10pm-5am. Took on the fast steep climb to start so I could run down the rest. There is a wonderful mix of open views at the top and light canopy cover. A lot of the trail is stone and compacted sand. Would still be good to hike after a rain.

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Lisa Comeau
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Hiking
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Ruben Quinones
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Cross-country skiing
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Ken C
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Hiking

Nice scenic hike through the lower hills surrounding Mt Diablo. Recommend using one of the various trail options to make the out-and-back section in the middle into a loop for some added length and variety.

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Darrin Tinsley
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Hiking

gates open at 7:30. Ample parking and facilities at trailhead. Clockwise for gradual uphill counter clockwise for best downhill footing

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L C
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Hiking
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Scott Shaw
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Hiking

Beautiful.

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Janel Pelosi
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Hiking

Short one but decent elevation!

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Robert Stillwagon
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Hiking

That was an nice short bike but I’d skip the tail, it’s pretty uninteresting

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Andreja Ho
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Hiking

Lovely, short hike with plenty of shady spots. Love it!

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Justin Young
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Hiking

Solid for running

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Jennifer Lum
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Hiking

Nice trail with shade. Secluded from the main roads. More foot traffic than I expected though

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Elena K.
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Hiking

Great trail. Totally doable as far as elevation. A steep rocky portion at the end of the hike going down but it’s not as scary as it looks.

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Alexandra Thomas
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HikingBugs

Nice trail, a little confusing to find the loop—the ravine was challenging for small children.

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Mitchell Green
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Hiking

R Sugarloaf, through Twin Ponds, Borges, zigzag to Hanging Valley, L HV or ?, L Briones, R Fairy Lantern, R stay on FL, L Stage, L Castle Rock trail, L Diablo Scenic, L Shell Ridge loop, R Fairy Lantern, R Briones, L Sugarloaf to cars

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Nicholas Foraker
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HikingRocky
First to Review

Great trial for a nice hike. The scenery is great as it changes throughout the hike. I wouldn’t run as the ground is very rocky and the horse use on the trail has made the ground pretty bad. Also, don’t be surprised if you have to cut the hike short due to cows. I couldn’t get through on the out and back portion of this trail

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Caroline Le
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Hiking
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Samantha Sam-Chen
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Hiking
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Madeline Ewry
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Mark Rotblat
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Hiking
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Jon Roller
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Janna S.
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Benjamin Rouse
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Hiking
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Jenny Mcgregor
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Liz Scherer
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Hiking
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Annie O’Shea
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Hiking
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Lexi Hasan
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Hiking
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Ben Smith
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Hiking
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Beth Levy
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