Whirlpools??!! These are things which you only read about or see in movies. Never imagined that I would actually go out in a boat to try and spot them with my own eyes!!
The Naruto whirlpools are created by huge volumes of water moving between the Seto Inland Sea and the Pacific Ocean between high and low tides, combined with the unique underwater geography of the surrounding area. This webpage tries to explain it but it’s only available in Japanese -> http://www.uzusio.com/know/index.html
Depending on the change of tides, the whirlpools will vary in size. They tend to be larger in summer as compared to in winter and are largest during spring tides, which occur every two weeks. Under optimal conditions, whirlpools of up to 20 metres in diameter can be observed. If your timing is bad and you visit outside of the peak times, you may not get to see any.
There are different boats which you can ride on to get to the whirlpools.
We boarded the bigger boat called the “Wonder Naruto” (わんだーなると), which is operated by Uzushio Kankosen, for a 30min tour to see the whirlpools.
Under the ONaruto Bridge (大鳴門橋) between Awaji Island (淡路島) and Shikoku (四国) where the currents collide…..
Can you see the whirlpools? They aren’t very big since it’s not really the right season to see them.
Before you decide to hop onto a boat to go out to see the whirlpools, it’s best to check the Whirlpool Schedule first, in order to ensure that you’ll get to see something! The boats operate on fixed schedules so you’ll need to check which are the best viewing times which coincide with the boat schedules before you book your boat tickets.