Fisherman Finds Giant Rusted Chain, Then Locals Warn Him Not To Touch It

Something that floats

The others looked uncertain, but there was no time for hesitation. The plan wasn’t safe, but it was their only shot. Luke braced against the deck, prying loose a hollow wooden beam that groaned as it cracked free. Despite being waterlogged, it still trapped air. He turned back to the group. “This is it. Hold on tight. We’re going up.”