The Vortex Naruto ( 鳴門 の 渦潮 no Naruto Uzushio ? ) is a vortex that forms in the Naruto Strait .
Naruto Strait has a width of about 1.3 km, is one of the close links between the ' Pacific Ocean and the Inland Sea, which separates the islands of Honshu and Shikoku, two of four main islands of Japan. The tide pours in the strict large quantities of water twice a day, and I always remove as much twice a day. This then creates a difference of about 1.5 meters in sea level between the Inland Sea and Pacific Ocean, due to poor width of the strait, the water flows along the channel at a speed of about 13-15 km / h four times per day, twice coming and going twice. During a spring tide, the current velocity can reach 20 km / h, creating a vortex of about 20 meters in diameter. The current in the strait is the fastest in Japan and third in the world after Norway Moskstraumen in (maximum speed: 27.8 km / h) and Old Sow between New Brunswick and Maine (maximum speed: 27.7 km / h).
The vortices can be viewed from boats or from Onaro Bridge which crosses the strait. Another good point of observation may be the beach of the island of Awaji . In addition, the Vortex
Naruto has been the inspiration for the creation of the famous manga and anime Naruto , and its symbol is precisely the case of a spiral.
