San Bruno Mountain State and County Park has a hike for every taste. You can do short and flat and easy, like staying on the Old Guadalupe Trail, or link several together and do a double-digit-multi-loop-hard, all day excursion. I've listed some single trails and some multi-trail hikes, so there is some overlap in the list. The hikes are sorted by difficulty.
Here they are; the hikes
Bog Trail
A short single-track loop through the bog (hence the name). You're hiking through thick foliage all the way around this loop, but the path is well tended.
Saddle Loop Trail
All easy (except for one steep section) dirt or paved road . Open to bikes, peds, and Horsies. Some of it is deep in the eucalyptus and some is out on the ridge with views of Brisbane, the Bay, and San Francisco.
The Big North Loop
The Big North Loop ( a name I just made up ) combines three of the trails on the nort side of the park: Old Guadalupe, The Bog Trail, and the Saddle Loop Trail.
Starting and ending at the Crocker Street entrance and with only one short steep portion you get plenty of views of the city, bay, and Brisbane without
too difficult of a hike.
Summit Loop
Starts and ends at the second parking lot. The loop takes you up one side of the mountain to near the peak, and then loops around following the north-west ridge with incredible views.
Southern Loop Trail
This hike takes you through some of the least trafficked areas of San Bruno Mountain encompassing two unnamed trails and a portion of the Ridge Trail.
Ridge trail
A dirt or gravel fire road. Out and back along the southern ridge mostly easy but with a few steep sections.
One Half of the Two Sides...
This hike is one half of my article on Sides of San Bruno Mountain it starts and ends on Quarry Rd in Brisbane. The route goes through
heavy foliage and up a steep ridge to get to the ridge trail. Then follows the ridge trail out and back with beautiful views and raptors galore, and back down a different trail
past the court of the Fairy King.
