My buddy the Navy diver did some deep scuba in his career. Lot's of 'extra' stuff to do. I'll just guarantee you that he still remembers enough of his decompression tables to keep from dying on the way to the surface. Some of that was from scuba but also from hard hat. They had like 6 hour stops there.
No permanent structures 3m from the high water line? Probably a good idea all in all. I hope your coffee is hot and as good as mine.
Hi @bigtom13, good to see you. Yup piping hot, black and strong :)