Harbour

Sherman Lake Marina

Rio Vista, United StatesSan Francisco Bay
Type
Harbour

Small marina on the south shore of Sherman Lake, a flooded former farm island at the confluence of the Sacramento and San Joaquin rivers.

Guide

Approach and anchoring

Enter Sherman Lake from the San Joaquin River through the breached levees south-west of Sherman Island. Tidal but with limited range. Shallow throughout, watch for old levee remnants and submerged tules. Wind picks up sharply in the afternoon from the west.

Practical

Boat berths, fuel, repairs, on-site store and tent or RV camping. Phone +1 925 978 2877. Address 5140 West Sherman Island Road, Rio Vista.

Ashore

Lower Sherman Island Wildlife Area, 3,100 acres of tidal marsh open for waterfowl hunting and birdwatching. Sherman Island County Park 6 km north on the levee road, one of the top windsurfing and kiteboarding sites in the United States.

Key facts

Type
Harbour
Coordinates
38.05181, -121.78351 (38°3.11'N 121°47.01'W)
Town
Rio Vista
Country
United States
Updated
July 7, 2026

Getting there

Sherman Lake Marina lies at 38°3.11'N 121°47.01'W, that is 38.05181, -121.78351 in decimal degrees.

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