There are many rugged cameras that can do the underwater thing, but only a few SLR cameras that can get anywhere near the wet stuff. However, Nauticam has released a new housing for the Panasonic DMC-GX-1 camera. The NA-GX1offers an ergonomic grip that is sculpted into the housing, and ports for the various lenses that can be used underwater including Lumix 14-42mm kit lens, the Lumix G Fisheye 8mm, Lumix 7-14mm, and the Panasonic Leica 45mm macro lens.
The NA-GX1 is rated for 100 meters and features a housing back that is sealed with an easy to operate safety clasp to avoid accidental opening when going deep.