Some of the stuff'll be easy to find again, others, not so much.

[The shipwreck probably was already picked clean by now, and even if it wasn't, Ralph couldn't remember exactly where it was, so he wouldn't have any more coins. Pearls were less rare, but somewhat annoying to get, he never went looking specifically for them, only when he wanted some clam to eat. Sea glass was a little bit hard to find and getting crystals from the Deep was dangerous.]