Scuba Diving, Scuba, Scuba Market Report, Blue Economy, Travel.
you buy a U/W navigation system? Yes: 27% No: 73% Have you ever used a vocal U/W communication system? Yes: 26% No: 74% Among those who answered yes to the previous question: Did you use the U/W communication system to help with U/W navigation? Yes: 23% No: 77% Among those who answered yes to