Island Water Park Season Passes for 2012 are on sale right now for $69.99 for the unlimited passes and $49.99 for the M-Th passes. I signed up for the email list hoping to get a discount code.
Island Water Park is located at 6099 West Barstow Avenue,Fresno,CA 93723.
I don't know their membership perks, but for more information call (888) 633-7105. Click HERE to purchase your passes.