The Avenue of the Giants is part of the Humboldt Redwoods State Park. It is a very long day trip from San Francisco (almost 4 hours), but just 2.5 hours from the Willits / Fort Bragg area, where there are other things to do on a vacation / holiday. If you are visiting California from far away, I suggest you try to fit this drive into your trip. The pictures can't really capture the scope of it all.

I've been reluctant to put links on my pages since people change them so much, but here is one site about the Drive Through Tree place.