COMMENT:: Twice as many untrained cavern or cave divers have died in US caves than properly trained cave divers. When the water is crystal clear and the sun shining outside, inexperienced divers might be tempted to enter these overhead environments for a "thrill". Sadly, hundreds of these untrained divers have died in the US. To safely dive into caverns or caves requires cavern or cave diver training. These two divers were lucky to survive and they are surely the exception. It is hard to imagine many other divers running out of gas in a cave and making it out alive. Cavern diving can be an exciting type of specialized diving but make no mistake, there are no shortcuts to this activity, only shortcuts to the grave. Training is required before going in, no matter how bright the sun is outside or how clear the water in the cave.
~ Peter Buzzacott, MPH, PhD
- In the US it is common for a 9 Liter tank to hold 63 cubic feet of compressed gas, so that is the equivalent volume suggested here in brackets.