The Naruto whirlpools can be seen in the Naruto Strait, located between Hyogo’s Awaji city and Tokushima’s Naruto city. The current in the strait can exceed 20 kilometers per hour, and the large whirlpool occurs on the edge of the rapid currents. The diameter measures 20 meters. This whirlpool is cou...

The beautiful stalactites and stalagmites were created over 175,000,000 years. At the entrance of the cave is the ruins of a Yayoi period cave dweller site. The Yayoi era earthenware, covered in calc-sinter, is of global importance. In 1934 the site was designated as a National Natural History Site a...