ACCEPTING BACK UP OFFERS! Calling All Boaters! Welcome to 800 W. 63rd Street, Marathon - a waterfront paradise designed for those who love the water. This spacious 3-bedroom, 2-bath CBS home offers 1,450 sq. ft. of bright and airy living space with beautiful views and 125 feet of seawall, perfect for docking multiple boats and launching your next adventure. Built for durability and ease of maintenance, the home features impact windows and doors (2022), a metal roof, and a 15,000 lb. boat lift (2023). Enjoy quick access to the open Atlantic and world-class fishing, diving, and boating just minutes away. Inside, you'll find a welcoming open layout filled with natural light, coastal finishes, and numerous updates that give the home a fresh, modern feel. The wraparound balcony provides ample seating and panoramic water views — ideal for relaxing or entertaining. Storage abounds with generous closets throughout, a separate laundry room, and an enclosed storage area beneath the home for all your gear and tools. The oversized lot offers endless potential with room for a pool, outdoor entertaining space, RV parking, and multiple boats or trailers. Covered parking adds convenience, while lush surroundings create a private, resort-style atmosphere. Whether you're seeking a turnkey rental investment or a personal waterfront retreat, this property checks every box — combining comfort, functionality, and the quintessential Keys boating lifestyle. Just a short cruise to the Atlantic Ocean and ready for your next adventure! The adjacent property at 850 W. 63rd Street is also available for sale, presenting a rare chance to own side-by-side waterfront homes. Live in one and rent the other, create a multi-generational retreat, or expand your rental portfolio with two exceptional Keys properties.