6.5 Nautical Miles off Harvey Cedars, 1.50 sq miles Depth: 65-85 ft [download]
Good Times and Queen Mary are plotted from 1989 LORAN numbers. Although the TDs are slightly different, the resulting conversions are identical. It doesn't matter, neither one is still there.
120 yards north of South Beach, 0.01 sq miles Between Kismet and National Seashore dock This reef is very close to land, it could even be a shore dive Depth: 16 - 25 ft
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.