Cavern Diving Definitions by Agency?

[MauiScubaSteve]

From the NAUI S&P manual, page 2.5:

Cave diving- A penetration into a naturally occurring rock environment with a restricted vertical ascent beyond the cavern zone.

Cavern diving- Diving in the area in an underwater cave that is illuminated in part by natural sunlight and from which an emergency swimming ascent is possible.

For the NAUI Cavern Diver certification, from the same manual, page 2.152:

This course is to provide the diver with the skills and knowledge needed to gain experience and minimize risks in cavern diving at depths no greater than 100 fsw (30 msw) and at a combined depth and distance penetration no greater than 200 feet (60 meters) from the surface and must remain within the daylight zone and no-decompression limits.

All I can say is that NAUI seems to be saying that their Cavern certified divers are all capable of performing ESA from 200' linear and out of sight of the exit.

It would still be nice to see a NAUI definition of "daylight zone."

Here is the current last post in the thread that causes me to bump this thread.