East Moriches, which takes its name from an early Native American landowner, is a 5.6-square-mile hamlet in the town of Brookhaven. Sandwiched between Center Moriches and Eastport, East Moriches is bounded by Bernstein Boulevard to the west, Sunrise Highway/Route 27 to the north, Little Seatuck Creek to the east, and Moriches Bay to the south. East Moriches contains several peninsular landmasses; centrally located on the south coast is Atlantic Avenue, which unwinds straight down the verdant central peninsula, passing Atlantic Avenue Park before terminating at a marina. (An earlier turnoff for Eastview Avenue turns into a meandering route to a U.S. Coast Guard Station farther south on the peninsula.) Of course, the most sought-after homes and lots are on the water — Tuthill Cove and the wider Hart Cove — and prime waterfront residential lots with dock permits are being developed off Atlantic Avenue.