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 bar room, 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.