Diver Spots a Car on the Seafloor — Turns Pale When He Sees This Inside

Metal latch

Josh crouched down to inspect the seam. It looked like a slab of rock, but there was a small metal latch set into the stone, half-hidden by years of grime and salt.

He ran his fingers along it, surprised to find it moved easily, as if someone had oiled it not long ago.