TREASURE ISLAND beachside lot! Treasure Island at San Luis Pass is a fun, golf cart community located just southwest of Galveston. Property owners and their guests can enjoy the beach and shelling; fishing in the bay systems or offshore with access to the private boat ramp on the bayside. Or just sit on the decks for some sun, bird watching and the beautiful views. Call today to talk to Sherrie about purchasing this lot and creating your island oasis!