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I would rate this moderate. Most of the route is well covered by trees and did not feel the heat at all. Beautiful views. Go early to get parking

One of the best kept secrets of the Bay Area

I’ve done this trail from beginning to end and back again! A few times! I love all of it, the views are amazing and so are the trails and steps! It’s one that I will keep doing until I feel accomplished with my finish time, and even then, I will still do it because I personally like it!

Def not easy, especially if you have any fear of cliffs and steep inclines near the edge of the Pacific but beautiful and peaceful. Also make sure to google map the parking lot, the directions here will just strand you on 1.

Beautiful hike.

BEST dog park in the Bay!

If it were my backyard, I’d take advantage, but not worth trekking to. TONS of poison oak.

Breezy and busy on a sat. Nicer doing a trail up here early in the day. Don't expect to find much shade...

Great loop and a good challenge on the incline of you’re running. I go here regularly with my dog. If you don’t want to hike the full 6 miles you can go for a nice walk and turn around whenever you feel like. Trail goes along the creek and there’s no incline for the first mile.

Near the top is where the poison oak gets REALLY BAD, to the point where you can’t avoid even if you walk slowly and sideways. Wear pants/bring a long sleeve.

Excellent 12k running trail.

hiking
16 days ago

Parking is $7 fee to enter Armstrong woods, drive through the woods and up a significant elevation to the very limited parking at the trail head. Gets hot and about half the trail is in sun so bring plenty of water. The trail goes right by Bullfrog Campground which looks like a lovely spot to pass the night.

hiking
16 days ago

This is a good trail when you just want to get some distance in. It’s not too challenging and has enough shade to make it doable on an 80 degree afternoon.
The down side is not much scenic variety - mostly laurel and eucalyptus forests.. I like something a little more dramatic or varied but still totally fine and nice to get a longer hike without a long drive..
I’m not the fastest hiker and this took me pretty much exactly 3 hours.

hiking
16 days ago

We did this in reverse-starting down Gilliam Creek and ending on the fire trail. We had an early start, but still ended up doing the uphill fire road in full sun. The last few miles were very hard and unenjoyable. The stream crossings were no problem this time of year. We saw only 3 other people and enjoyed the solitude. A few turkeys passed our way. Bring 2 liters of water per person!

Did the Whitmore Gulch - Purisma - Craig Bitten. A total of 9.2 miles.
I would rate this Moderate

this trail can start at the forest service station in angwin. if on mountain bikes it is somewhat technical to start but is very enjoyable. Generally downhill but not one to go to sleep on.

Love a challenge! Very fun, beautiful views.

Beautiful hike and a great workout

hiking
21 days ago

Fun hike! It gets steep at one point which makes going down a little difficult but just take your time and use small steps and your hands for support.

hiking
22 days ago

Its a long day hike starting from parking lot. You need to follow slate creek trail and then at the slate creek campground you need to take left to bear creek trail. Camp ground has benches and table along with one portable waterless toilet. Continuing on bear creek trail will leave to peter's creek grove. Along the way you will find some old growth trees which is just amazing to be around. You will also find an old battered car almost eaten away by nature (wonder what story it holds). Peter's creek grove is 1.3 mile loop and it very secluded with lots of birds around and the creek sound is blissful to just hear it. Have lunch there and trace back the path to parking lot.

walking
22 days ago

Very fun trail, a lot to see, especially the hang gliders. Not strenuous, good for a walk in most weather.

Beautiful forest, views (the ocean in Halfmoon Bay) and flowers.
If you are fit under 55 you can get started either way, otherwise I would go anti clockwise.

Yet to see a hang glider land

23 days ago

My favorite trail in SF

good hiking trail for the beginners.

hiking
23 days ago

Great trail for beginner or people with some hiking experience.. close to moderate but not too difficult. If u do the hills starting from west side of the lake towards north and then looping down south on the east side of lake will be better than doing the other way around unless u r a hiker who loves going up grades.. the grade from the east side of lake for a 1/2 a mile is steep.. but otherwise the hike is generally easy to moderate.. great views.. about 9 Miles long. 3- 3 1/2 hrs

I like this trail except way too many bicycles and loud talkers (both hikers and bikers). Not a great place to go if you want solitude. Even with the smoke in the air, it didn't keep people away.

I enjoyed the variety of trails on this loop. I was huffing and puffing a bit on the way up to the top of Black Mountain. I wished there hadn't been so much smoke in the air as there was very little to see at the top. It did make me pause and be grateful for areas that are still alive with vegetation and not burned.

This area fooled me into thinking it would be cooler than the east bay. WRONG! It was a warm hike towards the end. Make sure to bring plenty of water and a good sun hat as a lot of the trail after mid way is exposed. I went through almost 2.5L of water on the hike today.

This is a bit of a drive to get to for me, so I'll probably not do it again. If I do, I will do it in the fall/winter/spring when there is no smoke in the air and the land is green.

hiking
25 days ago

I want anyone reading this to know that there is NO "Old Paige Mill trail'...at least the portion heading north to Skyline Ridge. I know it has it on the map, but I was standing on the 'trail' and I assure you it is not a trail and not passible. Had to backtrack out and ended up at the rangers station. The rangers said there is no trial there and it does not exist on the maps they have of the SP. That being said though, this is a beautiful park to hike in!

Great Hike. I'm by no means a pro or close to, but the hike was great until near the bottom of the Sycamore line. I felt like the overgrowth hadn't been cut back like it should've and some poison oak would on occasion hang over the trail and it was just GAH. Total grueling workout but my girlfriend and I loved the views. In retrospect, we would've stayed on the Rocky Ridge View trail and then enjoyed some In n Out down the street lol.. Also once you reach the Devil's Loop it is just intensely uphill. Respect for anyone who takes less than 10 or so breaks from that butt burner.

Great trail. I hiked with a full pack in preparation for an upcoming camping trip. Only saw about 6 people on the trail. 98% full tree coverage from the sun and zero bugs! A real treat for a Wisconsin native.

Just completed a portion of the loop today. I'm giving this a Moderate to High Moderate rating. Our loop was 7.51 miles in 5 hrs, 4 mins (not including a 30 min lunch). Minimally, carry 2 liters of water or hydration pack. We spoke with the Ranger and followed her suggestion. We took Whitemore Gulch Trail down: great suggestion. Saw two bucks immediately, good trail maintenance, great views, wild flowers blooming. We came back up Harkins Trail and it is steep in several areas (8%} and in more Sun. Ranger suggested coming back up Whitemore, but you're going to have to come back up either way. if we had more tone, we'd have done the full loop.

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