You need to take your Canon camera with you and youre uncertain whether itll be okay? Well, Canon has an answer for you, providing you with different cases for your cameras. The cases are designed specifically to contain and protect, while allowing easy reach and function.
The WP-DC600 case is waterproof down to 30m depths
Up close with a Sea Horse while diving in Indonesia. Shot with the SeaLife DC1400 underwater camera. http://www.sealife-cameras.com/cameras/dc1400.