Well, I can't top aquamar but would love to have been on some of those dives!
My cache from Southern Cal shore dives and Channel Islands...California, that is...
Broken up kayak
Pager...Like in the Corona commercials
Remote control boat...."Daddy, let me try it now!"
Brand new rod and reel...."Daddy, let me try it now...I promise I won't lose it like the boat".
Frisbees
4 Masks
3 Snorkels
2 non-matching fins
Nemo toy
Brand new knife and scabboard
Knife by itself
Golf balls
Zeagle weight pouches (large pair w 18lbs of soft weights)
Ceramic anchor thing shaped like a fish
Power Ranger doll
A large rib bone...hopefully not human.
Assorted blankets, towels, clothing...no I didn't keep those.
Small boat anchor