Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
Deleted.
I beg the administrator to delete this post.
I came across this article about a deep cave that was dived at the bottom sump 2200 meters down the cave. I didn't know that the entrance was 2250 meters over the Black sea level.At least tell us what it said!
2.2km down in a cave is not an easy stroll. It surely consists of many steep slopes, and possibly SRT-pitches, maybe boulder chokes and crawls too. It can get very physical and technical. Imagine if you need to crawl on your belly while pushing the cylinders in front of you in a man-size wormhole. You might not want an 18L double set there I would assume that 7L tanks were used. And no, I have not done such trips. But I can tell you that 200m down is a lot too (without dive kit).
The dive might have been done in very bad visibility. Some sumps have near zero visibility on entry, and zero on exit. 100m is quite a long dive, and it's a lot longer on return journey, if your life depends on that single fragile thread some call a line.
The diver only extended the range by some 100 meters or so. Wonder why such a short dive.