See Marin's world-famous redwoods without the crowds on your moderately strenuous, 3 to 4-hour, guided small-group tour led by an expert local guide. Access the iconic redwood groves of charming Mill Valley on foot and navigate the quiet trails following the fern-lined canyons at the base of Mt. Tamalpais. Experience cathedral-like ancient trees in a primeval creek-side setting and explore the redwood groves for about two and a half hours....