Never second-guess the rules.
The safe way to make a visual jump when cave diving… Don’t Every open-water diver knows that the first rule of scuba is: don’t hold your breath. Always have plenty of something to breathe, so you don’t have to hold your breath. In essence, the same basic advice, but more detailed. Cavern and cave divers have rules too; most of them are adapted from (and piled on top of) those from all the prerequisite courses. But some are unique to the overhead environment. The first is: Always maintain contact with a continuous line to a known exit. For non-overhead environment divers, here’s a brief explanation of what that means. You may already know that cavern and cave divers follow a piece of string – a guideline – when they’re swimming around. In most cases, certainly in the caverns and caves publicly listed as potential dive sites, this permanent guideline is already installed. Its upkeep and mai