For the next eight days, you can watch a live undersea camera via the Aquarius underwater ocean laboratory in the Florida Keys National Marine Sanctuary. The laboratory is deployed three and half miles offshore, at a depth of 60 feet, owned by NOAA, and is operated by the NOAA Undersea Research Program’s (NURP) Undersea Research Center at the University of North Carolina Wilmington. Cameras operate around the clock from inside and outside the research craft during missions, and sometimes divers go for swims with helmet cameras turned on. Watch here.

Underwater nature enthusiasts should also note the Nature Network, which has the OrcaLive feed of whales in Johnston Straight in the waters off Canada. The whale radio ends Oct. 31, but then they sink a camera in the South Pacific to watch sea turtles.
--Tom Roe