The world’s most famous grove of virgin redwoods, this forest is full of trees that are 400-800 years old and grow to more than 250 feet high, as well as a plethora of other wildlife. Activities include a leisurely (wheelchair accessible) hike alongside a salmon-filled creek. Tip: Starting this year, parking ($8) and shuttle reservations ($3) are required. Visit gomuirwoods.com. Open daily.