open circuit
Tec 50
Third level of the technical diving progression, extending staged decompression diving to around 50 m with multiple decompression gases and longer required stops.
Third level of the technical diving progression, extending staged decompression diving to around 50 m with multiple decompression gases and longer required stops.
Third level of the technical diving progression, extending staged decompression diving to around 50 m with multiple decompression gases and longer required stops.