Hello, I posted some Irish things, what a couple days ago? So, here's this, an actual story, involving the watery ghosts you may remember. Old one, and I suppose it's not that scary, but figured it may be interesting. This is supposedly a true story, for what it's worth.
On Inishboffin, an island off the coast of Ireland, in County Galway, around 1902, a man named Garret Conner caught sight of a boat while tending to fishnets with his cousin Gerald. He points out the boat to Gerald, which is floating sideways in toward the shore, running the risk of colliding with the pier. Fearing for the crew of the boat, and for the pier (which would be expensive to replace, and make things hard on the fishermen), and the boats moored, Garret and Gerald run up the pier, calling to the crew on the boat. Three men, tending other boats, joined them, yelling and bringing rope to perhaps moor the boat themselves if the crew was found incapacitated, or dead. Those lost at sea long, afterall, would eventually die, so they needed to be prepared if one of these boats came floating in to moor it and remove the bodies safely.
Garret, Gerald, and a friend from another boat row out in a small boat, connecting the line, and row back toward the pier. They noticed immediately, no one was responding to the repeated calls, and the anchor chain was in the water, but the boat was floating along anyway.
They get the rope around the pier mooring, and pull it in opposite the other boats for safety. The hull gets a small dent, but the pier is unharmed, and they secure the boat safely, but it's floating back and forth, as the anchor seems perhaps be floating just below the waterline. Setting up a plank, the men board and search the ship.