SuPrBuGmAn
Contributor
Well considering I am not cavern diver, I was not willing to go any deeper into the cavern entrance. I made the right decision for my training level.
I'm glad you didn't go in too far to get yourself into any trouble, but prudence would have kept you out of the overhead all together. While you did a good thing by not pressing on, you didn't get to take full advantage of what the cavern has to offer and the conclusion of your report on Jackson Blue is inaccurate.
Glad you had some good dives though.
What are the limits on Cavern? 200 feet combined depth and penetration? (Its been a while) That makes the end of the cavern zone at JB somewhere around the start of the Goldline. I think a lot of divers call the entire first room before the chimney a "cavern" but in reality it is a cave.
200' for TDI standards, less for other agencies. The goldline starts at 100'p, and the 200' marker is around the big white rock with the large airpocket. Thats also just around where you start to lose ambient light. There's enough cavern there that you can take advantage of the full penetration limits of the certification(assuming you have it in the first place).