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.
M60 tanks undergo a thorough cleaning before use as reefs
The Artificial Reef Program used four types of obsolete Army armored vehicles as artificial reef materials off the New Jersey coast. These were cleaned at local military bases, loaded onto barges for transport, and pushed off at their final destination. Once the Army had disposed of its excess inventory, the program ceased, around 1999. The Artificial Reef Program has sunk almost 400 tanks altogether, far too many to list them here in this website.
Masks come in hundreds of models and designs. Options include one to six windows, purge valves, color tinting, anti-fog coatings, and whatever else the corporate marketing guys can think up.
A mask's purpose is to let you see in the water. It is surprising just how narrow your field of view in a mask actually is, although you get used to it. Generally, the closer the main windows are to your eyes, the wider your field of view, and this is good. Side windows are supposed to increase your field of view, but they also move the main windows away from your face, and at any rate, you can easily turn your head to get the same effect. A few masks also have bottom windows, which are useful for inspecting yourself or your gauges.