San Pablo Bay
1. Point San Pablo Marina (Located at the end of Pt. Molate Rd.)
2. Loch Lomond Marina (Located on San Pedro Rd. East of Hwy. 101)
3. Crockett Marina (Foot of Port St. below Hwy. 80 bridge)
1. Richmond Harbor (Foot of Marina Dr. off Hwy. 580)
2. Loch Lomond Marina (Located on San Pedro Rd. Esat of Hwy. 101)
3. Vallejo Marina (Curtola Pkwy - Mare Island - way off Hwy 29)
4. Port-O-Sonoma Marina (South of Hwy. 37 at Petaluma River Bridge)
San Pablo Bay has extensive flats, areas are subject to foggy conditions. Observe all rules for anchor lights and running lights. Beware of large vessels and barges during periods of low visibility.
At Loch Lomond and Port Sonoma it is important to follow channel markers, especially at low tides and in pre-dawn and twilight hours to avoid accidental grounding.
San Pablo Bay is a shallow tidal estuary that forms the northern extension of San Francisco Bay in northern California in the United States. It receives the waters of the Sacramento and San Joaquin rivers, via Suisun Bay and the Carquinez Strait on its east end, and it connects to San Francisco Bay on its south end. The bay is heavily silted from the contributions of the two rivers, which themselves drain most of the Central Valley of California. At the Napa Sonoma Marsh San Pablo bay also receives the waters of Sonoma Creek , Petaluma River, and the Napa River, the latter of which flows into the Carquinez Strait via the Mare Island Strait near its entrance into the bay.
The bay is approximately 10 miles (16 km) across and has an area of approximately 90 square miles (240 km²).
The bay is shared between Contra Costa, Solano, Sonoma and Marin counties, the boundaries of which meet near the center of the bay. Communities on San Pablo Bay include San Pablo, Pinole, Hercules, Rodeo, Vallejo, Novato, and San Rafael. The city of Richmond is on the peninsula separating San Pablo Bay from San Francisco Bay.
The undeveloped portions of the periphery of the bay are plentiful with salt marshes and mudflats. The bay is a primary wintering stop for the canvasback duck population on the Pacific Flyway, as well as a migratory staging ground for numerous species of waterfowl. Much of the northern shore of the bay is protected as part of the San Pablo Bay National Wildlife Refuge.
Endangered species that are found in the bay include the California brown pelican, California clapper rail, and salt marsh harvest mouse. Saltwater fishes found in the bay include striped bass, surfperch, sturgeon, starry flounder, leopard shark, topsmelt, and anchovy. The bay is a popular destination for recreation fishing.
Because of its great size but shallow waters, San Pablo Bay frequently has difficult boating conditions. The prevailing western wind meets strong currents both at Carquinez Straits and, at the opposite end of the bay, near the Richmond Bridge, to produce large waves, with few areas of retreats for most boats.