This episode features a number of springs around Japan. The Kakita River Springs are largest in the Orient, emitting more than 1 million tons of water per day. They are also home to an endangered species of aquatic plant (Ranunculus nipponicus var. japonicus), which produce alluring blossoms. We also feature the strange legends associated with the massive spring-fed lake inside the cave in the town of Iwaizumi in Iwate Prefecture. The episode also focuses on the flavors associated with spring water, such as coffee and deluxe versions of river fish which have been brewed or farmed in it. We also look at a community on the shore of Lake Biwa, which uses cold spring water in the kitchen and to cool items in the manner of a refrigerator.
