The surface marker buoy (also called safety sausage or SMB) is an inflatable buoy with a line attached, that enables divers to visualize their position on the surface.
+66 86 773 9762
info@easydivers-thailand.com
The surface marker buoy (also called safety sausage or SMB) is an inflatable buoy with a line attached, that enables divers to visualize their position on the surface.