**** 鳴門の渦：NARUTO NO UZU;Vortex at NARUTO ****
We have in-land-sea "SETO-NAI-KAI" in west Japan. Because of the 5 hours time delay of the high-tide and low-tide by the AWAJI-SHIMA island, many vortex are made for a while every day.
Added on 1st/march/2020
I believe the NARUTO on RAMEN was named after the vortex of NARUTO.
Also I believe vaguely the MANGA of NARUTO is named after NARUTO.