ocean depths 

One of the most mysterious places on the planet, if not the most mysterious. It hasn't been explored too much, so many undiscovered creatures probably live there.

One kind of recently discovered creature from the ocean depths is a giant squid.

ocean depths by The Wraith October 14, 2003

ocean depths 

The vastness, depth and elasticity of a female's vaginal canal.

After venturing into her ocean depths, I nearly drowned and almost didn't return.

ocean depths by Robyn February 25, 2004