If a home were to be designed and built to exemplify true Hamptons resort estate living, 612 Halsey would most certainly be the pinnacle of that ideal. Located south of the highway in Bridgehampton, and sited on a sprawling 11.5+/- acres, welcome to Sandcastle. At 17,000+/- sq. ft., the main residence is grand living at its finest. With ten bedrooms, ten full and five half baths there is ample room for family and guests, a perfect place to privately relax or entertain on a grand scale. On the main level, you are welcomed into the magical entry foyer, and led directly through to the open and chic formal living room. A true chef's kitchen can serve as its own entertainment space, and is supported by a second full prep kitchen, butler's pantry, wine room and walk-in refrigerator, as well as a fireplace and two separate seating areas. Or choose the fantastic formal dining room featuring exquisitely crafted detail work and finishes. Also on the main level you will find a walnut library, ten-seat theater, mudroom and second entry, screen porch, and 2,000+/- sq. ft. of covered porches. On the second level a 2,000+/- sq. ft. master suite features sitting room, massive closets, dressing room, his and her baths, and a large private patio with outdoor shower. Additionally, there are five en-suite guest rooms, an upstairs living room, and a separate guest apartment with two additional bedrooms and its own entrance. And in what is surely one of the most unique and special finished lower levels found anywhere, there truly is something for everyone. For the active lifestyle there is squash, racquetball, basketball, volleyball, a two-lane bowling alley, climbing wall and skateboard half pipe. Or try the full gym and training room. For virtual sports, there is simulated golf, baseball, hockey and soccer. For the fun times in life, unwind at the club area, with DJ booth, full bar, wine room, and lounge with five TVs. And when relaxing is the mandate, visit the private spa with fireplace, in-floor Jacuzzi, hydraulic massage tables, sauna, steam room, and showers. There are also two additional bedrooms tucked away for privacy for extra guests. When it's time to venture outside, a resort setting awaits you with sunken tennis with pergola, a 20' x 60' pool, oversized hot tub, basketball and your own field of dreams for baseball. A large outdoor kitchen will serve as a refreshment station to satisfy every need. Additionally, a 2,400+/- sq. ft. pool house features multiple studio rooms for yoga, meditation, art, or possibly an office. With two full baths and kitchen spaces, there are many uses for this extra space. A true resort destination of the highest caliber.