Long Island Sound Dive Sites Chart

Long Island Sound - West

Long Island Sound - East

Long Island Sound averages 60 ft in depth, with the greatest depth of over 300 ft at the eastern end. Tidal effects are strongest at the narrow western end, where all the inrushing water flow piles up and makes tidal variations of up to 7 ft. Strong tidal currents are also prevalent, and visibility tends to be poorer than the open ocean, especially at depth.

Long Island Sound Dive Sites


Mattituck Artificial Reef

Depth: 72 to 100 feet
2.37 nautical miles northwest of Mattituck Inlet


Type:
shipwreck, frigate ( Mermaid-class, 6th-rate ), British Royal Navy
Name:
Hussars were light cavalry units of the period, known for their colorful and showy uniforms.
Built:
1763, England
Specs:
( 124 x 33 ft ) 627 gross tons
Sunk:
Thursday November 23, 1780
struck a rock - unknown casualties, including prisoners
Depth:
probably buried in the landfill under the police station near 135th Street

Shoreham Nuclear Power Plant
Satellite image, showing the jetties and the never-used nuclear power plant.

Now, most people would look at the heading on the page and think that I was crazy for diving near a nuclear power plant. Just to calm your fears, this power plant was never brought online, so there is no chance of getting radiated at this location (barring a nuclear war while you're diving). With that said, Shoreham can be a very interesting dive. Located on the north shore of Long Island (I don't know the name of the town, look on a map), it is a shallow dive with an average depth of around 16 ft. Visibility tends to be anywhere from 3 to 10 ft.


Shipwreck Atlantic
Type:
shipwreck, steamer, USA
Built:
May 1846, New York NY USA
Specs:
( 320 x 36 ft ) 1112 gross tons, 75 passengers & crew
Sunk:
Friday November 26, 1846
boiler explosion; then grounded during storm on Fisher's Island - 45 casualties
Depth:
20 ft

Shipwreck Lexington
Type:
steamer, USA
Built:
1835, New York NY USA
Specs:
( 207 x 21 ft ) 488 gross tons, 165 passengers & crew
Sunk:
Monday January 13, 1840
fire - 4 survivors
Depth:
125 ft - 150 ft

Mount Sinai Harbor / Jetties

Once you get there, suit up at your car and walk down the small stretch of beach till you get near the jetty. Enter the water at your leisure. Once in the water, you can swim north along the jetty to the tip. You may see fish, lobster, crabs and the sort. There are large openings in the rocks that form the jetty. Large enough in fact that you can almost swim into one. I don't advise doing this because getting stuck might be a frightening experience.

Long Island Sound

Hudson & East Rivers
The Verrazano Narrows at the mouth of the Hudson River.

Looking roughly south: Sandy Hook is barely visible at upper-right, Rockaway inlet at the upper-left, Brooklyn at lower-left, Staten Island at lower-right. The shipping channel is also plainly obvious.

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