Adventure Under the Sea

Beneath the ocean waves lies Earth's final frontier, or so comic books would have us believe. The mystery of the deep dark waters can be explored by a few Atlanteans or mer-folk, but for the rest of us air breathers we need a vehicle that can provide air and protection from the icy cold, and intense pressures of the watery abyss. To this end man has developed the mighty submarine. Since as far back as Alexander the Great's Greece men have submerged themselves in a vessel of some type. Primarily used for military purposes in real life, comics lets the submarine explore the depths in the name of science and adventure.