Simmons Trail to Potrero Camp is a 2.7 mile moderately trafficked loop trail located near Mill Valley, California that features beautiful wild flowers. The trail is rated as moderate offers a number of activity options.
I did this trail as part of the Cataract and Mickey O'Brien Trails at Mount Tamalpais State Park. The trails are well maintained and are moderate level. About 500 ft difference in elevation all around. Some nice scenic views as you get to the top.