Where do ships go after their service life?
Ship disposal methods have come a long way as several approaches have been introduced and discontinued since the beginning of marine transportation. Most of the time, especially a half-century ago, the ships ended up in vast graveyards only to slowly decay in the years to come.
Also called a ship cemetery, these graveyards would generally have many ships, boats, or hulls of scrapped vessels left to decay and rust.
Such graveyards were formed as a result...
https://www.marineinsight.com/environment/10-largest-ship-graveyards-in-the-world/