That was NOT the story I wanted to start my day with, but I'm happy that it didn't have an entirely tragic ending. I'm always afraid of knocking my gear into the pit/water/traffic/whatever, because I'm such a klutz. Happily, I haven't as yet done so. Sorry that you had to go through it. I can only imagine the feeling as you realized the whole kit was beyond your reach.
When I get an old lens, I often try to imagine just what put that dent in the ring, or that knick in the glass. You've just set down the story for yours, "Well, I was climbing this waterfall..." Should get you a free beer occasionally.