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My computers are attached to my right wrist with bungee mounts; I use the right so I can still see them when I am controlling my buoyancy with the left. I use bungee mounts as they are neat and have two separate fastenings in case one fails; many people tie a wrist lanyard to their computer, but I find this untidy. My compass is attached to the wrist in the same way, usually in line but on the opposite side to one of the computers.
You can accomplish the same thing by sticking one finger in the sand. Seriously. I am also sorry to say that there is enough dead coral in Cozumel to hold your position on a reef by hooking a finger onto dead coral. You can actually mover pretty easily against the current that way, reaching from one dead spot to another.he tickler was suggested by the shop hosting the trip. It's not to mess with wildlife, it's supposedly to stop moving in the current by poking it into the sand.