Tombstoning is the act of jumping in a straight vertical posture into the sea or other body of water from a high jumping platform, such as a cliff.
Water is a transparent fluid which forms the world's streams, lakes, oceans and rain and is the major constituent of the fluids of organisms.
A Jumping platform is a naturally occurring or human-made surface for people to jump from.
A sea is a large body of salt water that is surrounded in whole or in part by land.
Tombstoning gone wrong by RNLI
This posture of the body, resembling a tombstone, gives the activity its name.
A headstone, tombstone, or gravestone is a stele or marker, usually stone, that is placed over a grave.
Tombstoning In Plymouth by The Doveys
A safety advisory from the Government of the United Kingdom records that tombstoning has been taking place for "generations"; however, it is under increasing media and public scrutiny due to wider coverage of the risks involved.
Her Majesty's Government, commonly referred to as the UK government or British government, is the central government of the United Kingdom of Great Britain and Northern Ireland.