Want to stay a little longer? Extend your stay for $50 a night. Extend Your Stay rate must be booked through the reservations team at (409) 515-1970. Applies to one site at Camp Margaritaville RV Resort Crystal Beach. Subject to availability. Limit one night per offer. Occupancy and site types may be limited. One offer per reservation. Blackout dates may apply. Valid on-site fees only. Discount does not include taxes and resort fees.