The closest remaining stand of Redwoods to San Francisco, Muir Woods National Monument is a great half-day excursion from the city to pay homage to these soaring giants of the forest. It's incredible to think that each tree grew from a seed no larger than that of a tomato's. Redwoods can grow to over 380 feet (115m), although Muir Woods' tallest tree is 258 feet (79m). The park itself is a haven for wildlife and there are numerous longer hikes departing from the shorter ring path that most visitors amble around.
Telephone: (415) 388-2595
Opening times: Open every day 8am to sunset.
Admission: $7 adults, children under 15 free.