Explore Mtn Biking - view hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers and nature lovers like you.

Mtn Biking Map


Went early on Sunday morning, 3/4. Take the unmarked trail to the left of the trailhead sign to go directly to Castle Rock. Didn't seem worth it to me, but to each their own. Some snow on the ground from yesterday's storm, with the sun melting snow in the trees. Wasn't expecting rain! Once I got to the falls I didn't need my raincoat. Despite the rain from yesterday, the falls were just more than a dribble. Nice hike on the Saratoga Gap side, but the Ridge trail gave much better views. It was more difficult with roots, steeper climbs, and boulders/rocks on the path, but worth it. Took me 3.5 hours with a lunch break. Nice area just west of Goat Rock to have a picnic. I hope to come back one day to do the Skyline to the Sea hike. Love having a wooded trail this close to home!

Beautiful trail, with a few rocks to casually climb and get hidden gorgeous views:)
Trail itself is well maintained.

Sanborn was pretty with all the trees but kind of boring honestly. Once we crossed over to the castle Rock side on the Saratoga gap trail it was gorgeous! Make sure you've downloaded the map because some of the intersections aren't very well marked.

Cold if you're in the mountains shade. There are much better hikes on Tam!

Hiked clockwise this time and counterclockwise last time. Both ways are enjoyable and worth repeating. Good hike, very scenic and a decent workout. Clockwise has more uphill climbing - going clockwise Bootjack to Mountain Theater is the steepest part of the loop. Clockwise time: 3 hrs.

Many ups and downs. Great mountain views. Fun to watch rock climbing and bouldering.

Alum Rock park is one of my favorite it's the first park I started exploring on my own great to bring kids & family.It is considered A moderate hike,It offers free parking,water fountains,restrooms& playgrounds for children.Take the trail to eagle rock park where you can overlook San Jose & enjoy the sunset! For those who enjoy mountainbiking alum rock park is A great place to do that too! I always bring A new or returning friend & they love it

Wet nice spot to hike, the views are incredible at some points, there is a look out deck about 2 miles in, and if u go a little further, there’s a huge rock on the edge of the cliff if ur brave enough to climb and sit and take an amazing photo..definitely would return here.

Beautiful nature. A touching calmness.

1 month ago

great out and back. fantastic views

mountain biking
1 month ago

I'm used to mountain biking in Washington so maybe I'm a little biased, but I didn't love this as a mountain biking trail. Some great views at the top, but very little technical work required, mainly just brute leg strength. It was also a little too crowded to get any good speed up without someone being in your way. Not a bad ride, but also not great.

Breathtaking views, really light traffic once you get away from the trail heads. It’s definitely one of the hardest trails I’ve ever done, but also one I’ll never forget. Plenty of cute cows will stare at you as you make your way to the top, so prepare to have you heart stolen. Piece of advice though? Mind their poop!

1 month ago

Tremendously peace view from the shoreline adjacent to bridge

Wow, this hike is gorgeous! And it’s a total ass-kicker, especially the first 3.5 miles! Be prepared for inclement weather...it was hot when I parked but super windy and foggy at the higher elevation.

Good uphill climb, beautiful views!

Sanborn Park is nicely shaded while part of trails in Castle Rock Park offers great view.

1 month ago

So gorgeous! There are amazing views of SF, the bay, the beach, and Sausalito. I’d recommend getting there early enough to find parking as it was intense by the time we left (about 1pm). We ended up adding a couple miles to our trip by adding the Battery Spencer Trail to the day as well as exploring a couple of the old batteries which I definitely recommend. As a Bay Area native, the views never get old and if you’re local and you haven’t been, I hope you do. Trail was about 40-50% shaded so prepare for that if your fair otherwise it requires very little planning. Great place to take visitors! Keep in mind you can only access the parking lot from the south so if you’re coming from Marin, you do a bit of backtracking - unless I don’t know a secret way to get through... which is entirely possible!

Agree with others, it’s definitely a moderate and not a hard. Still beautiful, and love the rest stops at the inn and the amphitheater, but tack on one of the peaks to add a bit more exercise to your miles.

After taking a slight detour on to to castle rock trail, we headed back to Saratoga gap trail then on to goat rock trail. Tried to go on a side trail (climbers only trail) seen on this map to bypass backtracking but it is apparently private property— there was even a sketchy red sign saying people should “heed the warnings”.. didn’t risk it. We went left at the fork on Saratoga to castle rock falls first, then back around down (or up rather) ridge trail. Overall, great hike!

mountain biking
1 month ago

Love it up there great place to hike or mountain bike!

First time doing this part of Quicksilver. Definitely enjoyed it and will come back to complete the entire 10 mile loop

Great hike. Wear a good pair of hiking shoes, bring two bottles of water, snacks, and a trekking pole to help with the incline.

1 month ago


We didn’t have as much time as we would have liked, but we will definitely be back. This trail has lots of gnarly rocks on either side, which I enjoy. There was a little scrambling to be done in the way to Goat Rock especially, but nothing too bad. You can see across Monterey Bay from the top of Goat Rock!

This was such a gorgeous hike! You are surrounded by ferns, trees, and moss for most of the hike. Gets a little strenuous at times but should be a fairly easy for the avid hiker. I did come home with a tick stuck to my back so take precaution.

Good experience with a great view at the end, but definitely a hard hike for first timers. Bring plenty of water!!!

Very nice hike. Castle Rock falls is very dry compared to the spring but still fun to watch the rock climbers. Parking is always a nightmare if you get here too late. Overall a super fun day out!

Great hike with great views. Not too many people when I hiked it. Sunset is the best.

2 months ago

The short part of the trail to Summit Rock was open today and provided beautiful views of the bay area. We learned that this part of the trail is normally only open from October to late January.

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