1158 Sears Point Rd, Vallejo, CA 94592
Cullinan Ranch at San Pablo Bay National Wildlife Refuge
Description: Part of the San Pablo Bay Wildlife Refuge, Cullinan Ranch was once part of former 1,500-acre oat hay ranch in the 1800s, the 1.3-mile Cullinan Ranch Trail now meanders through an extensive tidal marsh restoration project.
The parking lot is 3.4 miles west of Mare Island on Highway 37. From there, the trail heads north until you reach South Slough, offering views of Cullinan Ranch to the east and a pond to the west, with numerous waterfowl and shorebirds foraging and resting in both areas.