There should be opening at the rv/campground at the sunset beach access road. It's near the golf course at mile post 13. there are showers at that
site.
Here is a link to the map of the area on the sobb web page.
http://quadlinekites.com/sobb/sunset2.htm
There is camping at fort stevens which north of the buggy beach.
Will find some place for you to drop anchor and enjoy your visit.
Mark
Buggy:Libre Full Race, Libre V-Max with Big Foot
Kites: JOJO - RM2 through RM10
Revolution 1, 1.5 Indoor, 1.5 SUL, 1.5 Vented, and Supersonic.