Liquid Image offers a diving mask with integrated camera. The Camera Diving mask was introduced earlier this year and is now selling in Japan. The cool diving gear is also listed on Amazon.com, but is not available for purchase.

The Camera diving mask features a 5MP camera or 3.1MP camera, 16MB of storage internal memory, USB port, and MicroSD card slot.
The camera mask is powered by two AAA batteries and has cross hairs in the glasses to easily target on which fish you want to film or make a photo of.
The Liquid Image Camera Diving Mask sells for about $114 in Japan.
More details on the Liquid Image site. Via AkihabaraNews.