Year-round Lake Lanier views, deeded Boat Slip, and a strong three-level layout define this gated Marina Bay masterpiece. Set within one of North Georgia's most established waterfront communities, this 5 bedroom, 5 full and 2-half-bath home offers ample living space, a 3-car side-entry garage with EV charging, and a three level layout that supports both quiet daily living and full-scale entertaining. From the moment you step into the two-story foyer, the home begins to unfold at scale. A sweeping curved staircase anchors the entry, while the family room beyond is wrapped in floor-to-ceiling windows overlooking the private backyard and year-round views of Lake Lanier. Enjoy your own private backyard retreat with direct lake access perfect for kayaking and a secluded hot tub ideal for relaxing under the stars. French doors lead into a wood-paneled office with built-ins and a fireplace, creating a true work-from-home retreat. The main level also includes formal dining, a wet bar, and a spacious owner's suite with vaulted ceiling, dual custom closets, and an oversized bath. The kitchen was designed to function as the center of the home, with granite countertops, Sub-Zero refrigeration, double ovens, gas cooktop, custom cabinetry, a 36-inch Wolf range. The kitchen opens into the keeping room, where built-ins and a large fireplace make the space feel warm, substantial, and ready for a crowd. Upstairs provides secondary bedrooms, bath access, and additional lounge space, while the terrace level is built for serious entertaining with a dedicated theater room, separate custom downstairs was originally used at the Masters golf tournament and reassembled in the terrace level by previous owners, billiards and recreation space, gym area, sauna with full shower and additional finished flex rooms. Enjoy the year-round lake views, Marina Bay's gated amenity package, and more than $100K in seller-reported improvements spanning the kitchen, garage, systems, landscaping, fencing, and lighting, this property brings together the features buyers consistently look for in Lake Lanier living.