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.

The 2017 season is starting, so Annual Dues are "due" now. 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!

2017 Upcoming Events 

and Important Dates:

Gear Swap Meet- May 28 @ "The Sign"

RVWA-SIKO Board meeting postponed to June 4th

RVWA Youth Windsurfing Program Lesson Dates:
Sunday , June 11th, 11am 
Sunday July 9th , 10am
Sunday , Aug 6th, 10 am 

Rio Grand Slam June 16-18, 2017

3rd annual "Delta Board Meeting" at the 

Pittsburg Marina  June 24th and 25th


Fall Clean Up Sept 9th

Questions?    Contact us at: 


RVWA  Facebook ->

SIKO Facebook ->

Welcome to the Rio Vista Windsurfing Association (RVWA) &

The Sherman Island Kiteboarding Organization (SIKO) Website!


Please be good neighbors to our friends at Rio Viento.  They are a privately owned Camp Ground on Sherman Island next to "The Sign" at 4460 W Sherman Island Rd., Rio Vista, CA  94571. 

Rio Viento has notified RVWA-SIKO that they are having many tresspassers using their facilities.  Under no circumstances should anyone use the facilities, including showers, at Rio Viento if your not a paid guest. Violators will be prosecuted.  Anyone visiting Rio Viento must check in at the front desk prior to entering their site.  Rio Viento has full hook ups for Trailers and  Motorhomes.  For reservations call  (925) 382-4193

If needed, showers and other facilities are also available at Sherman Lake Marina, 5140 Sherman Island Rd., Rio Vista (925) 978-2877 or Brannan Island State Park, 17645 CA-160, Rio Vista, CA 94571 (916)777-6671

This  weekend!!!!!