We did the black abyss tour. It requires some phys...

We did the black abyss tour. It requires some physical strength. At one point we were pretty far behind from the rest of the group because my wife was having a hard time with the water. I didn't appreciate that the tour guide didn't try to help us out. In addition, we thought the guide should go through some safety rules. There are points where it's hard to hear the guide. When we tried caving in Belize, the guide had everyone pass along the message to the people behind them knowing it's hard to hear once you are in the cave. I wish the guides have done the same. For safety reasons, it's also better to have one guide in the front and one guide at the back. As far as gears, I think gloves should be provided as well.