How to Capture Great Underwater Footage With Your GoPro
Amazon.com : Dome Port for GoPro,Waterproof Housing Case Compatible with GoPro Hero 5 6 7 Black Underwater Protective Diving Dome GoPro Lens Accessories with Trigge Pistol an-ti Fog Insert (for GoPro Hero
DPG's New Guide to GoPro: Getting Amazing Color
I might not even use it. (GoPro 11 underwater review) - YouTube