Friends of Ballona Wetlands docents will host a Spring Open House at the state-owned reserve. Tour at 10 a.m. Sat. Ballona Wetlands, Jefferson at Lincoln boulevards, Playa del Rey. Open house at 1 p.m. Sat. at access point near 303 Culver Blvd., Playa del Rey. Free; reservations requested. (310) 306-5994.