If you mean in "The Poseidon Adventure" (1972) or "Poseidon" (2006), the ship was in the middle of the ocean when it was capsized by a rogue wave.
The ship was the Costa Concordia.La Costa Concordia
The S. S. Poseidon is a fictional ocean liner created by author Paul Gallico for his 1969 novel, "The Poseidon Adventure." The story has sired at least 4 films, including the 1972 blockbuster from 20th Century-Fox. In the story, the ship is met by a rogue wave - then called a tidal wave - and capsized. Survivors of the overturning struggle to reach the exposed hull and possible freedom.
Oh honey, it's not "The Poseidon," it's "The Poseidon Adventure." And in that disaster flick, a total of 31 people died when the ship capsized. So if you're thinking of booking a cruise, maybe stick to dry land for now.
The term for a ship or boat that has turned over is capsized.
Poseidon flips the Phaeacian ship over so that it can then be stoned.
Poseidon's staff is called a "trident." When mad he would strike the ground with it causing earthquakes, ship wrecks, and drownings.
The ship in the movie was a fictional ship, however there have been several real ships with the name Poseidon. They range from British cargo and steam ships to Military warships and submarines.
Poseidon A Ship on a Soundstage - 2006 V is rated/received certificates of: Finland:K-11
costa concordia
Percy Jackson, Poseidon(the sinking ship)
Zeus with a lighting bolt and the second ship poseidon destroyed with a violent storm.