swimming-aquatics

Don Castro Swim Lagoon

Hayward, CA

22400 Woodroe Ave, Hayward, CA 94541  |  (510) 544-3073  |  Located in Don Castro Regional Recreation Area, swimming in the chlorinated swim lagoon is a main attraction from the end of May through September. There is a bathhouse with shower, vending machines, a sandy beach and large lawn areas. Swimming is allowed only when lifeguards are on duty.

Last verified: May 10, 2026