San Diego Bay NWR – Sweetwater Marsh Trails
Chula Vista, California
Bayfront national wildlife refuge marsh trails on Gunpowder Point with birding and bay views; refuge trail walking is free (Living Coast Discovery Center exhibits are separately ticketed).
Free parking lot and shuttle stop off E Street / Gunpowder Point Drive next to Sweetwater Park.
Parking is a guide (~ typical short visit). Rates change — confirm on arrival or on the map.
