Sorry for the slightly offtopic post, but here is something possibly
interesting... a scuba diving game of sorts, or rather a diving screensaver
with some kind of an exploration game slapped on top. It's called
OceanDive, and it looks... quite unbelievable frankly, all in 3D, but looks
like the real thing. Search for OceanDive in Google, or try this link if it
works:

http://www.oceandive.com

Anna