Sequoia National Park. You can backpack to camp here ($15 wilderness permit required; purchase at Mineral King Ranger Station), camp at nearby Cold Springs or Atwell Mill campgrounds, or stay at the rustic cabins of Silver City Mountain Resort on Mineral King Road.
drive-through redwood tree in the Mariposa Grove, Yosemite National Park, California. Ok, so this same picture hung in my grandparents lake house for about 20 years! I can never see this pic without feeling like an 8 year old. Warm memories!