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

Ruby Map

A fine hike. Good mix of uphill, downhill and some flat. Mostly in eucalyptus forest. The only caution is that the trails are not marked and cell coverage is spotty. So download the map and use the gps when you are unsure - which is a lot.

Beautiful trails and waterfalls, great for a family hike. My kids spent a few hours splashing around in the river. What a fun day!

does anyone recall where the sundial is located on this hike? its an old stone Indian sundial which is off the trail itself. I think its on the ridge part above Forest Knolls.

Just a heads up the trail map at the trail head is different than the one posted here, so pick one or the other to follow.

Saw some nice doggos!

Fav dog hike. If your dog could speak he/she would ask for this hike on the daily.

Good for solo hike

So amazing- loved this trail and was not too difficult, esp. with a good bike! I started in Pacifica and went all the way to Moss Beach, where my family joined me by car and picked me up. - The trail continues down Montara Mountain and goes behind Sun Valley Equestrian, all the way to the town of Moss Beach.

Really good hike. The hike gets really steep towards the north peak. Recommended to do it early in the day so you are done by noon.

Great length of hike and definitely I’d rate this as moderate l. Steep dusty uphills are rewarded with nice downhills in intervals. The views along the way are absolutely worth the sweat! Bring a jacket if it’s foggy because on the way back you’ll need it in the areas with all the trees! We’ll do this one again for sure.

trail running
12 days ago

Excellent go-to for a quick run or hike for folks from Berkeley and UCB, but not necessarily a destination from elsewhere. Some nice stands of trees and a few spots with cool views of the bay. Nearby to the Lawrence Hall of Science and UCB botanical garden, both of which are great.

17 days ago

It's the beautiful place. Highly reccomend! Awesome place for family, horses riders, bicycles. There are a lot of trails there. So you can choose if it will be easy or not. There is waterfall what makes this place better. Reccomend

18 days ago

Great hike with great views of golden gate! Make sure to stop by Battery viewpoint! You fee like you are touching the bridge. The beach at the end is awesome! There were a few people there which was super nice :)

Easy, mostly wooded trail running along creek with great view of waterfall from nicely built overlooking deck at far end of loop.

19 days ago

This is my favorite one. Hiked 5 times in last two months. Beautiful views from the ridge.

Easy trail to hike. A perfect next door get away 10 min from home. Walked at leisurely pace and completed under 3.5 hours. The dogs loved every minute of it!

23 days ago

Hiked up here today (started in Stern Grove and did a big 5.5 mile loop, including a stretch through the mansions in St. Johns Wood neighborhood). Amazingly clear day, almost no wind at all. Saw a 2' long garter snake on the top of Mt. Davidson! Panoramic views taking in Sutro Tower/Twin Peaks to the north, downtown SF to the northeast, south of Mission, south SF, over to Brisbane... As well as clear views of the East Bay, including Mt. Diablo way off in the distance. In the western direction we could see some of the Farallon Islands as well. My wife prefers this location over Twin Peaks because there are no cars and no crowds -- it's a lot more peaceful!

Steep and beautiful views.

Very steep coming up or down from parking area...but not so steep that I had to slide on my butt.

I didn't even realize this trail was here, right behind Ralston Middle School. A great escape into a quiet woodsy preserve. Very close to residential areas, but it's very serene. Be warned, for those who want to try to follow the loop marked out in the AllTrails app, there are a bazillion forks in the road - some with three or four options - and they're not well marked. A lot of the signs seem erased or run down. I ended up doing a crazy figure 8 instead of the loop in the app, and while it didn't really matter, it added some extra mileage. I think we did about 4.5 miles total.

A lot of the trail is shaded, but still bring sunscreen for the wide open stretches. When the fog burns off, it can get brutal. Also be ready to scoot over for mountain bikers who come by every thirty seconds, and keep an eye out for the plentiful poison oak. I think the only animals I saw were tiny lizards and a cute bunny, but there are signs for mountain lions. A lot of dogs are off-leash too.

There are some steep inclines, but they're marked on the trail map plaques. Bring good shoes because there's a lot of loose dirt and gravel. I probably would only come back here out of convenience, as there are a LOT of cyclists. However, everyone we crossed paths with was friendly and kind. One gentleman helped point us in the right direction back.

A great little trail for canyon views. The trail narrows in some places. Picnic tables at the trail head + restrooms. Limited parking. About 1 -1.5 hour depending on your speed and viewing activity.

I love this trail which is quite shaded if you take the left side of the loop starting at Twin Ponds.

Hidden gem sandwiched in between San Francisco and Half Moon Bay. Beautiful coastal views. Not as hectic as other over hyped trails in the area. Nice Fresh air. You might spot a whale or two on the lower end.

29 days ago

Fun easy little hike

Wonderful hike. I did it back in April with my husband and it was difficult at the stair part. My second time doing it on Sunday with a girlfriend. Still hard, but better (since I have more hikes in) Encountered a rattlesnake at the top. But made it

short, easy, lots of shade, uninteresting view, good for beginners.

Beautiful and eerie pre-dawn October run up Montara Mountain. After heading out from the TH, I dropped down a bit and took the old road around a half mile in. About 2 miles in to the climb the trail gets a bit steep, but is non-technical and easy to follow even in the dark. I continued to climb up through and above the marine layer, feeling like I was in the Lost Boys. After about 4 miles, I reached the North Peak and took the fast decent back down.

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