Capsule: Located on the Intracoastal Waterway on the southern end of Aventura, Williams Island is a high-end enclave featuring luxury condo towers with spectacular views of the waterways and the Atlantic, and private residences with their own docks. Williams Island's amenities include the Tennis Club with 16 courts, the Golf and Country Club with a championship 18-hole, par 72 golf course and the world class Spa and Health Club.