CASTAWAY KEY ISLAND LIVING STARTS HERE. This homesite on Upper Captiva offers the perfect opportunity to build your own private island retreat in the desirable Castaway Key community. Surrounded by the natural beauty and relaxed atmosphere that make Upper Captiva so special, this lot provides an ideal setting for a custom full time residence, vacation getaway, or investment property. Enjoy the unique island lifestyle with beautiful Gulf beaches, boating, fishing, shelling, and unforgettable suns...CASTAWAY KEY ISLAND LIVING STARTS HERE. This homesite on Upper Captiva offers the perfect opportunity to build your own private island retreat in the desirable Castaway Key community. Surrounded by the natural beauty and relaxed atmosphere that make Upper Captiva so special, this lot provides an ideal setting for a custom full time residence, vacation getaway, or investment property. Enjoy the unique island lifestyle with beautiful Gulf beaches, boating, fishing, shelling, and unforgettable sunsets all close by. With its tropical surroundings and peaceful setting, this property is a blank canvas ready for your vision. Build the home you have been dreaming of and create your own slice of paradise in Castaway Key on Upper Captiva.