Bring a flashlight and join rangers for a night hike, and learn about local wildlife from 8 to 10 p.m. Saturday at Gen. Thomas F. Riley Wilderness Park at the end of Oso Parkway. The cost is $4 per person and reservations are needed. Children must be at least 8 years old. Parking is $2 per vehicle.
Information: (949) 459-1687.