I've managed to flood three action cameras. A GoPro (which was my own fault for not closing it properly); and two MuVi cameras which were in their housing "rated to 100 metres" and both flooded between 50 and 60 metres. With that in mind, what about buying a proper rugged third-party housing, rated to a minimum of 100 metres and has a proper click-to-close housing. Nauticam and the like. What do you use? Which housings would you recommend? Which ones to avoid (MuVi....) I'm fully intending to do a Malin trip, so really do need something that will work at 100 metres. Also want something that will survive being bashed around with my kit.