Humboldt Redwoods State Park
If huge old-growth trees are your thing, a visit the redwoods of northern California is probably your best bet. Humboldt Redwoods State Park is one of the best places to be immersed in the state’s redwood forests, and three of the world’s ten tallest trees are located in the park’s Bull Creek Flats area alone. Yes — you can drive through a giant tree here. Just don’t try to hug one, unless you have freakishly long arms.