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Parks #6 in Antioch, California

Sherman Island

4.5 · 575 reviews
Exposed, breezy, and rugged
Sherman Island, 4800w Sherman Island Rd, Rio Vista, CA 94571, United States
Interesting facts
1

Sherman Island is located at the confluence of the Sacramento and San Joaquin Rivers, two of California's largest waterways.

2

The island is situated significantly below sea level, making it a critical area for regional levee maintenance and flood control infrastructure.

3

The area is renowned among kiteboarders for 'The Sherman Blow,' a consistent afternoon thermal wind effect caused by the interaction of coastal air and the inland valley heat.

4

It contains portions of the Great California Delta Trail, a planned multi-use recreational trail system.

Overview

Sherman Island is a primary destination for windsurfing and kiteboarding in the Sacramento-San Joaquin River Delta due to its consistent thermal winds. The park is managed by Sacramento County Regional Parks and features access to the Sacramento and San Joaquin rivers. Much of the island sits below sea level, protected by a complex system of levees maintained by the local reclamation district. The park area, specifically the Sherman Island Public Access Area, provides primitive launch points for small watercraft and fishing access. Vegetation consists primarily of tule marshes and riparian grasses consistent with a delta ecosystem. It serves as an important junction point where the two major river systems converge. Visitors often use the site as a base for exploring the surrounding waterways and sloughs.

Photo spot

The levee top looking out over the water towards the wind turbine backdrop.

Insider tips

Check wind forecasts specifically for the Sherman Island site before arrival, as conditions change rapidly.

Bring plenty of drinking water and shade equipment, as the island is exposed with minimal natural cover.

Ensure your vehicle is capable of navigating gravel or dirt levee roads, as surface conditions vary.

What to avoid

Attempting to launch watercraft without prior experience in high-wind conditions and strong river currents.

Etiquette

Practice 'Leave No Trace' principles by removing all trash, as there are no waste disposal services on-site.

Plan your visit
Typical visit
3-5 hours
Best time to visit
Late spring through early autumn, specifically during weekday afternoons when thermal winds are strongest.
Address
Sherman Island, 4800w Sherman Island Rd, Rio Vista, CA 94571, United States
38.056, -121.787
Get directions
Details
Primary ActivityWindsurfing and Kiteboarding
FacilitiesPrimitive boat launch and fishing access

Frequently asked

Plan for about 3-5 hours to see the highlights.

The best time to visit is Late spring through early autumn, specifically during weekday afternoons when thermal winds are strongest..

The levee top looking out over the water towards the wind turbine backdrop.

Close by you'll find Big Break Regional Shoreline, Contra Loma Regional Park, Brannan Island State Recreation Area.