Aliso and Wood Canyons Wilderness Park
A 4,500-acre coastal canyon wilderness with oak woodlands, sandstone formations (including 'Cave Rock' / Dripping Cave used by 19th-century bandits), and trails connecting inland Laguna Niguel to the sea. Popular for hiking and mountain biking; mostly shadeless, so carry water.
28373 Alicia Pkwy, Laguna Niguel, CA 92677 (CA, Orange)

