Diver Finds Train Wagon On Ocean Floor, Then Takes A Look Inside

Airtight seal

Matt tugged at the hatch with both hands until it came loose with a sharp snap. A sudden rush of bubbles escaped into the water, followed by a powerful current of cold seawater pouring down into the space below. Whatever was under there had been sealed—airtight and untouched. Matt steadied himself against the frame, watching as the darkness beneath slowly accepted the flood.