Beautiful Water View Paradise. Come build your home with a million-dollar view of the Occoquan River. 2 Min walking distance to put your feet in the water. Live in the Water Front community of Belmont Estates nestled within Wild Life Reserves of Lorton's Mason Neck. Fairfax County's Best Kept Secret. Subdivision Plat Identifies Access Easement potential for dual entry from Bay View & Belmont Dr.