This is the area of northern California where the giant Redwoods are located, which is about 150 miles north of San Francisco (drive straight up Hwy. 101). If there is any place that you want to put on your "must see" list, I would say that this is it. Don't go to Muir Woods National Park and say "I've seen the Redwoods." You haven't seen "the Redwoods" until you've gone into the Avenue Of The Giants.