A whirlpool is a body of rotating water. It is usually produced by ocean tides. A bigger whirlpool is called a maelstrom. It is also produced by a current running into an obstacle or opposing currents.
Whirlpools as a threat[change | change source]
Many stories tell of ships being sucked into a maelstrom, although only smaller craft are actually in danger. If you swim close to it, it will bring you underwater. You will drown and surface after a few seconds.
Other websites[change | change source]
Media related to Whirlpools at Wikimedia Commons