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 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, then the Donate button to become a RVWA-SIKO member or pay your yearly dues. "due" your part to help keep your favorite sport happening on the river!

Questions?    Contact us at: 


RVWA  Facebook ->

SIKO Facebook ->

Welcome to the Rio Vista Windsurfing Association (RVWA) &

The Sherman Island Kiteboarding Organization (SIKO) Website!

Please support our local businesses:

Delta Windsurf and JRVWindsurfing Lessons

Kitopia     and   Edge Kiteboarding

Important Dates:

Opening Day at Sherman , May 25, 2019 10 am -2pm, 

Free BBQ at noon BBQ Sponsored by SIKO and SFBA

Learn from Local "411 crew" about safety, local rules and local knowlege of Sherman Island kiting/lauching.

Memorial Day Demo :  When: May 27, 2019 Noon to 5

Duotone on Sherman Island Kite beach/ Rigging area

 Open House Party at Delta Windsports Shop

Saturday May 25th, Starts at 6pm

Windsurf and Kitesurfing Swap Meet 

Where? "The Sign"  When?  Sunday May 26th ,8am to 10am

Sand Baggin Sunday May 26th  10 Am Meet at Day use area at " The sign"

RVWA-SIKO Board Meeting Monday May 27,2019 10 A.M.

Free Kids Windsurf lessons    The following Saturdays 10 am -1pm 

June 22 ,2019     July 20,2019      August 17,2019

(Limited spots available, sign up early)

4 day Windsurf Camp-

June 17th to June 20, 2019 (See info on website): 

https://delta windsurf.com

SF Classic /Ultra Nectar Challenge July 20-21,2019  San Francisco

ABK windsurf Clinics- July 25 to 27, August 1 to 4 , August 22 to 25, 2019   www.abkboardsports.com

Berkeley Kite Festival July 28-29, 2019