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Cedar Beach


  1. Basketball Court
  2. Beach
  3. Boat Ramp
  4. Concessions
  5. Fishing
  6. Marina
  7. Playground
  8. Trails

Beach Details

Cedar Beach is located on the Long Island Sound in Mt. Sinai, New York. It offers two beach areas (Cedar Beach Main and Cedar Beach West), a concession, playground, basketball courts, walking trail, fishing pier, marina and boat launch ramps. View a Facebook photo album of Cedar Beach Nature Center.

Lifeguards on Duty

  • Cedar Main
    • Memorial Day Weekend to July 4th
      • Saturday and Sunday
        10:30am to 6 pm
    • July 4th to Labor Day
      • Monday to Friday
        11 am to 6 pm
      • Saturday and Sunday
        10:30 am to 6 pm
  • Cedar West
    • July 4th to Labor Day
      • Saturday and Sunday
        10:30 am to 6 pm

Beach Rules & Regulations

  • Please swim between green flags.
  • No mask, snorkels, blow up toys or rafts in swim area.
  • Please don’t place umbrellas to obstruct the view of the lifeguard in tower.
  • No jet skis or boats in swim area.
  • No open fires on beach.
  • No fishing in swim area.
  • No pets (trained service dogs only, no ESA animals).
  • No grills or open flames.
  • No drones.
  • No smoking on Town property.
  • Mobi Mat and Handicap beach wheelchair available.

Educational Programs

Nature Center

The Mount Sinai Marine Environmental Stewardship Center (MESC) is located in Mount Sinai, within the Town's Beach / Marina complex at Cedar Beach. The mission of the MESC is to provide residents with a place to enjoy and experience the natural environment and to gain an understanding in the role man plays in its protection and conservation. The MSRC has living displays that include aquariums and an outdoor touch tank; interactive interior displays using touch screen monitors, and a submarine room where touch screen computers give you an animated view of the life in the Long Island Sound. A 700-foot long boardwalk allows you to take a walk within the dune system and interpretative signs along the way introduce you to the plants that make this a critical habitat. Groups may request a tour from our Environmental Educator, Nicole by calling her at 631-451-6639. 

Free Environmental Events

View Upcoming Events (PDF)

Cedar Beach Environmental Programs

Cedar Beach offers programs the whole family can explore and learn together including guided tours. Our walking tours cover topics including ecology, plants, animals, and natural history of the sound. Residents can explore our submarine room, discover marine animals in our touch tanks, make crafts, participate in nature hikes, and much more.

Teacher's Resources

If you have a school class, scouting organization or other community group interested in participating in environmental education, please contact the Town of Brookhaven Division of Environmental Protection at 631-451-6455.

Cedar Beach Nature Center Video