Treasure Islandâs crown jewel. The Club of Treasure Island. The site consists of 7.67 acres with an additional 1.49 acres of submerged land. Located on the south side of Treasure Island Causeway, just over the drawbridge (west) on the Intracoastal Waterway. The Club land is 625 feet on Treasure Island Causeway and 563 feet of seawall on Boca Ciega Bay. The waterfront Tennis and Yacht Club features a total of 48 wet slips that will hold vessels from 25 feet to 80 feet, six tennis courts, an Olympic size swimming pool and a clubhouse consisting of 39,318 gross square feet. There are five event spaces (event space for 300), executive offices, a bridal suite, locker rooms, game room, kitchens, dining room (205 dining capacity), bar & outdoor entertaining area. Current parking is greater than 200 spots. This is a great waterfront location within .75 miles of Treasure Island Beach and the Gulf of Mexico. Convenient access to the Gulf of Mexico via the Intracoastal Waterway and Johnâs Pass.