Underwater Housings
A larger and larger number of underwater housings are being made available for digital cameras so that you can take part in the ever increasingly popular sport of diving and capture those fantastic aquatic memories forever. You might simply just snorkle with your camera or just use the underwater housing to protect the camera from sand or constant drops.
Many underwater housings (aka waterproof cases, marine housings, etc) are able to protect your camera to a depth of up to 40 metres but please check as different models have different specifications.