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The following six locations in the county park system have been designated as official dive spots.

At Cedar Point County Park in East Hampton there are three distinct sites:

The Northwest Harbor site is a good novice dive that provides excellent photo opportunities.  There is plenty of light, little current, and lots of small sea life.  The depth is approximately 8 feet.

The Gardiners Bay site is a novice/intermediate dive of shallow depth.   Blue claw crabs, small lobsters, flounders, and bluefish can be observed.

The  intermediate/advanced dive at Cedar Point Lighthouse has depths possible to 35 feet.   Blackfish, lobster, blue claw crabs, fluke, flounder and bluefish can be observed in season.  Diving is best at slack tide as current can be strong.   Four wheel drive vehicle access with valid Suffolk County outer beach recreational vehicle permit is needed to reach site.

At the outer beach area in Theodore Roosevelt County Parkthere is a novice/intermediate dive approximately 15 feet in depth.   Marine life abounds at this location.  You'll need a four-wheel drive vehicle with valid permit to access this site.

Smith Point County Park   in Shirley allows access via four wheel drive vehicle with permit to this Moriches Inlet intermediate/advanced dive.  Diving is permitted on the back (bay) side of the inlet only due to the strong current.  Blackfish and lobsters are abundant.  Rocks slope down to 25 feet.  Avoid the inlet itself due to heavy boat traffic and display a dive flag.

Cupsogue Beach County Park   in Westhampton allows access via four wheel drive to Moriches Bay Inlet.  An intermediate/advanced dive must be done safely at slack tide on the back bay side of the inlet (similar to Smith Point.)  Depth is approximately 12 feet.  Blackfish and lobsters are abundant.

Meschutt Beach County Park in the Hampton Bays offers snorkeling along the jetty.

Rules and Regulations:
~Divers must register with entry desk of park.
~Divers must carry and be prepared to present certification cards.
~Divers are required to display a red and white diver down flag when in the water.
~If the dive site can only be accessed via a four-wheel drive vehicle, then an Outer Beach Recreational Vehicle Permit is also required.

Be advised that areas on the outer beach may be closed at various times due to changes in beach conditions from natural occurrences (storms, tides, etc.), work (jetty repair, etc.), or bird nesting.