Sinkers, gold coins, elusive moon snails, brass spikes, mussels, scallops, surf clams, trigger fish, lost dive gear [weight belts, lights, knives], lost gear that Capt. Jim drops overboard, grapnels, anchors, I know I missed a few.

Bart, I still have that 500lb Carter lift bag you wanted last year. Sounds like you'll need it this year. Hope the bottom and handle of that new catch bag is "weight rated" to carry the load.