Marin County is very large and diverse. Mt. Tamalpais sits in the center of the southern portion of the county. Towns lay around her base, each providing trails to the summit.
One of my favorite hikes is the Phoenix Lake Trail, which starts in Ross. It begins with a walk beside gorgeous mansions from a bygone era. Then the beautiful Lagunitas Country Club, with its charming lodge, is quite visible from the path. You will go through a small Redwood grove, bearing left and ascending beside the dam, up to the lake. Phoenix is one of five lakes that dot the northeastern side of the mountain. Circle the lake clockwise. The local forest is comprised of Oak, Bay, and Redwood trees.
The streams and creeks are covered in moss and fern. You will see occassional waterfalls, wild turkey and deer, duck, and turtle. The best time of year to visit is in the spring, when all the local wildflowers are in bloom. Marin's hikes are interlinked and quite clearly posted. Visiting other lakes can be done quite easily. This is only one of many great hikes available here.