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We are a user-supported non-profit oganization.

We are working hard to keep our access to the Delta open, as well as fun and safe for windsurfing, winging and kiteboarding. We provide and maintain several launches on Sherman Island to our RVWA-SIKO members.

Overnight camping is not authorized unless posted.

Please click Donate to the left, use either Venmo or Paypal QR Code below or on Donate page to become a RVWA-SIKO member, or pay your yearly dues. We prefer Venmo as it has the lower surcharge. "due" your part to help keep your favorite sport happening on the river!

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SIKO Facebook ->

Current Events 2025

Spring Cleanup- Saturday, April 26, at 9am

Meet at “The Sign” (4466 West Sherman Island Road). Bags will be provided. We have some gloves. Wear shoes that work well for climbing on the levee rocks. This year the spring clean-up dumpster is being sponsored by the Delta Conservancy which is a state of California agency. The 341-reclamation district that governs Sherman Island is very happy that we organize two of these events every year. Please join us in the clean-up. Let’s be good neighbors and promote goodwill within the Delta community. We want to ensure that we have access to the windy Sacramento River for many years to come.

SATURDAY, MAY 24^TH, 9AM -LAUNCH SANDBAGGING

Meet at the sign and wear clothing to protect you from the scratchy sandbags. Long sleeves are best if you’re working with bags. We will need some trucks to move bags around to the various launches on Sherman Island. Water and snacks will be provided. Of course, all materials for sandbags are provided by RVWA. Each bag costs RVWA about 10 dollars including the gravel to fill it. We really appreciate our wind sport community coming out to support our efforts to protect the levee from erosion.

Sunday May 25^th Swap Meet 9am to 12noon

This is a great opportunity to sell your used gear. Clean out that closet, garage, storage unit. Also, buy your RVWA Membership! We will have a table at the Swap Meet. Support us, supporting you!! We promote continued river access at Sherman Island. As always, we are working to make the Delta a safe and happy place to do our wind and water sports.

Sherman Opening Day / Expression Session May 31, 2025, 11am to 6pm

There will be a hot lunch to buy; raffle tickets and a silent auction for some great prizes (TBA). Watch Facebook announcements!!

Come to the RVWA booth to buy: RVWA Memberships, T-shirts, Lunch and Raffle Tickets.

We are hoping to have the biggest, MOST fun winging race in North America. Any level winger can join!!!!! We will have one upwind location to collect something (like a Hawaiian Lei?) and return to the start. Whoever gets back first wins the first-place trophy. Kiters will have their own “Expression Session”, showing us their latest, greatest moves and highest jumps. It’s great to watch!!!!! Come join the fun!

See you on the water!!