36 C.F.R. § 28.3 – Boundaries: The Community Development District; The Dune District; The Seashore District.

(a) Generally. The boundaries of the Seashore are described in the Act, as amended, and are delineated on the official boundary maps OGP-OOO2, dated June 1964, and amended by OGP-OOO4, dated May 1978. The maps are available for inspection at the Seashore headquarters. There are three districts: The Community Development District, the Seashore District, and the Dune District.
(b) The Community Development District.
1. (1) The seventeen communities which comprise the Community Development District are set out below with their respective west/east boundaries.
  1. (i) Lighthouse Shores—Kismet Park
    West Boundary: 100 feet west of the west line of West Lighthouse Walk. East Boundary: 80 feet east of the east line of Pine Street.
  2. (ii) Seabay Beach
    West Boundary: Approximately 94 feet west of the west line of Seabay Walk. East Boundary: Approximately 94 feet east of the east line of Seabay Walk.
  3. (iii) Saltaire
    West Boundary: 185 feet west of the west line of West Walk. East Boundary: 85 feet east of the east line of East Walk.
  4. (iv) Fair Harbor
    West Boundary: 333 feet west of the west line of Cedar Walk. East Boundary: The east line of Spruce Walk.
  5. (v) Dunewood
    West Boundary: The east line of Spruce Walk. East Boundary: 85 feet east of the east line of East Walk.
  6. (vi) Lonelyville
    West Boundary: 85 feet east of the east line of East Walk. East Boundary: 100 feet east of the east line of Raven Walk.
  7. (vii) Atlantique
    West Boundary: 80 feet west of the west line of Sea Breeze Walk. East Boundary: 80 feet east of the east line of East End Walk.
  8. (viii) Robbins Rest
    West Boundary: The west line of Compass Walk. East Boundary: 113 feet east of the east line of Sextant Walk.
  9. (ix) Fire Island Summer Club—Corneille Estates
    West Boundary: 100 feet west of west line of Schooner Walk. East Boundary: 100 feet east of east line of Frigate Roadway.
  10. (x) Ocean Beach
    West Boundary: 7 feet west of the west line of Surf Road. East Boundary: 2 feet east of the east line of Surf View Walk.
  11. (xi) Seaview
    West Boundary: East line of Surf View Walk. East Boundary: 200 feet east of Laurel Avenue.
  12. (xii) Ocean Bay Park
    West Boundary: 90 feet west of the west line of Superior Street. East Boundary: 100 feet East of the east line of Cayuga Street.
  13. (xiii) Point O'Woods
    West Boundary: 100 feet east of the east line of Cayuga Street. East Boundary: Western boundary of Sunken Forest Preserve.
  14. (xiv) Cherry Grove
    West Boundary: The west line of West Walk. East Boundary: Approximately 100 feet east of the east line of Ivy Walk.
  15. (xv) Fire Island Pines
    West Boundary: Approximately 150 feet west of the west line of Sandy Walk. East Boundary: Approximately 120 feet east of Sail Walk.
  16. (xvi) Water Island
    West Boundary: The west line of Charach Walk. East Boundary: Approximately 100 feet east of the east line of East Walk.
  17. (xvii) Davis Park
    West Boundary: 90 feet west of the west line of Eider Duck Walk. East Boundary: 90 feet east of east line of Whalebone Walk.
2. (2) The northern boundary of the communities listed in paragraph (b)(1) of this section is the mean high water line on the south shore of the Great South Bay.
3. (3) The southern boundary of the communities listed in paragraph (b)(1) of this section is the mean high water line on the south shore of Fire Island.
(c) The Seashore District. The Seashore District is comprised of all portions of the lands and waters within the boundary of the Seashore which are not included in the Community Development District with the exception of the headquarters facilities at Patchogue and the William Floyd Estate at Mastic.
(d) The Dune District. The Dune District extends from the mean high water line to 40 feet landward of the primary natural high dune crest, as defined on Fire Island National Seashore Map #OGP-0004 and on Suffolk County Property Maps, section numbers 491-498 (Islip), 002 (Ocean Beach), 002-004 (Saltaire), and 985.70-987 (Brookhaven), as mapped in November 1976 or as subsequently remapped. Map overlays of the Dune District are available for inspection in the Office of the Superintendent of the Seashore. The Dune District overlaps portions of the Community Development District and the Seashore District.