Check out The Cave Store in La Jolla. Descend 145 steps from the store into a tunnel that leads to an ocean-carved cave.
Visit Julian, a California frontier town with pioneer storefronts. Tour the historic mines, and enjoy an apple pie, which is as good as gold.
Hike The Slot, a narrow siltstone canyon in Anza-borrego Desert State Park. View gravity-defying rock stacks. Stargaze at night in this Dark Sky Preserve.