Amazon.com : Suptig Replacement Waterproof Case Protective Housing Compatible for GoPro Hero 7 Black Hero 6 Hero 5 Underwater Use - Water Resistant up to 147ft (45m) : Electronics
30m Underwater Camera Housing Diving Case Fisheye Lens Waterproof Protective Dome Port For Gopro Hero 5/6/7 - Sports & Action Video Cameras Accessories - AliExpress
Amazon.com : Entaniya ENT220 Fisheye Lens 220 Degree for Ribcage Modified GoPro Camera : Electronics
Amazon.com : Dome Port Lens for GoPro Hero 8 Camera, 30m/98ft Underwater Waterproof Diving Dome Cover Case with Floating Handle & Trigger, Fisheye Sphere Snorkeling for Hero8 : Electronics
Entaniya Fisheye Rig for Three GoPro HERO4 Black Cameras ENT3CRG