Remarkable Gulf to Bay waterfront estate on the highly exclusive Island enclave of Casey Key, where opulence and serenity unite in perfect harmony. The highly sought-after gulf to bay position allows for the optimal experience in waterfront living. No trade-offs between boating and beaches, this property indulges it all. The bayside overlooks Blackburn Bay, with a dock and lift making the waters easily accessible by boat. The gulf side features a private beach right outside the front door, literally your own slice of the paradise that people converge from across the world to experience. With walls of glass and an abundance of covered balcony space, this property offers an ideal vantage to capture sunrise over the bay, sunset over the gulf, and the turquoise waters of the Gulf of Mexico all day in between. The expansive, open floor plan is ideally suited for both entertaining and water gazing, with seating areas thoughtfully positioned throughout both floors. Added luxuries include a wet bar, elevator, upstairs laundry room off the owner's suite, and a dedicated study on the main level. The neutral palette affords the opportunity to easily customize decor and finishes to suit your design preferences. Outside, the resort-like setting is enhanced by an infinity pool and spa, and the grounds feature lush lawns, paver paths, and outdoor dining retreats. Additionally, the property boasts 107 feet of water frontage on the Gulf of Mexico and 80 feet of frontage on Blackburn Bay, providing an extensive and stunning connection to both bodies of water. Savor the tranquility of Gulf to Bay living. Don't miss the opportunity to make this exquisite property your own and experience the epitome of coastal luxury.