I have done several l things to increase my chances of not loosing and recovering my GoPro when I eventualy loose it.
-First thing I did was paint the inside of my housing with bright safety orange colored paint. I took care taping off the screen and the gasket area.
-When I removed the lens for painting, I replaced the plastic lens ring with a metal ring that has a backup lanyard mount in it. (GoPro Aluminum Lanyard Ring Mount Lens Flat Curved Wing Suit Skydive Scuba Video | eBay
-I installed a floaty backdoor.
-Then I wrote my name, phone number, and my city on the backdoor, inside the housing, on the camera, and a text file on the SD Card.
-I also use a floaty handle sometimes. (GoPro Poles, Mounts, Grips & Accessories - GoPole