The direction of fast-flowing currents in oceans and rivers is constantly changing.

Once water currents moving in two different directions come into contact with each other, they will no longer be able to continue moving at the same speed and direction. Instead, these currents twist and rotate around each other, forming whirlpools.

Swirls can appear in different sizes depending on the volume of water and the strength of the water collision.

According to a report published on the "Live Science" website, some eddies form and disappear within a short period of time, while some water systems maintain eddies for centuries.

Whirlpools are not as destructive as depicted in fiction (Shutterstock)

How do I escape death?

Swirls are not as destructive as depicted in fiction.

However they are dangerous to people and small boats.

Of course, it is not easy, dear reader, to run the risk of falling into a whirlpool, especially if you are not a kayaker.

The kayak is defined as a small, single-passenger boat supported by a two-row system, and here the paddle must be free, unlike the sport of rowing in which the paddle is attached to the boat.

According to Ken Whiting, the world kayak champion, you should make sure you wear protective clothing when entering the water such as a life jacket and helmet that can protect you from the harsh currents surrounding the whirlpools.

Whiting advises to avoid entering the water at all if you see any indication of a whirlpool.

If you enter the vortex, you should not be moving in the same direction as the water flow and should aim at the outer edge rather than the center.

It is also important to avoid filling the kayak with water.

The Naruto Vortex is located between Tokushima and Hyogo in Japan and reaches a diameter of 20 meters (Shutterstock)

The world's most famous vortex

Saltstraumen

This whirlpool is located in a small fjord south of Bodo in Norway, where there is one of the strongest tidal currents in the world.

Water can travel at 10 meters per second to create this giant vortex that is up to 10 meters wide and 5 meters deep.

Old Sow

Forming in the waters between Deer Island and Moss Island in Canada, this vortex is one of the largest in the Western Hemisphere.

They can vary in size with a diameter of approximately 76 meters, and are surrounded by several small vortices.

Naruto

It is located between Tokushima and Hyogo in Japan and reaches a diameter of 20 meters.

The vortex is formed by the tides, as water enters the narrow Naruto Strait at 19.3 kilometers per hour during the spring tide.

The Corrivica vortex off the coast of Scotland is the third largest vortex in the world (Shutterstock)

Corryvreckan

Located between two rocks off the west coast of Scotland, this vortex is the third largest in the world.

Moskstraumen

This vortex is located in the Norwegian Sea between Mosquin Island and the southern part of Moskinesia Island. It is the second most powerful vortex in the world, with a diameter at its largest of about 49 meters.