名水百選 means simply "a hundred selected famous waters." The Environment Agency, which then ran Japan's environmental policy (it became the Ministry of the Environment in 2001), chose the list in March 1985 to rediscover the clear waters found all over the country and make them widely known, to get people thinking about keeping water clean, and to protect good water environments, all in support of its water-quality policy. Two conditions were compulsory: the water had to be well conserved, and local people had to be actively looking after it. After that the panel weighed size, history and legend, and rarity or fame. Lakes were not considered. Prefectures put forward 784 candidates, and every prefecture ended up with at least one entry. By the ministry's own classification the result is 76 springs, 16 rivers, five groundwater wells and one irrigation channel, plus two sites that mix a spring or a waterfall with a river.
It is not a drinking guide. The ministry states that selection does not guarantee a water is fit to drink and tells visitors to check with the local municipality. Some sources are off-limits, and the Miyamizu wells belong to Nishinomiya's sake brewers. Hadano shows why the list needs checking: in January 1989, less than four years after selection, its best-known spring, Kobo no Shimizu, was found contaminated with tetrachloroethylene, and it took the city until January 2004 to clean up the groundwater and declare its springs revived.
In June 2008 the ministry chose a second set, the Heisei Remarkable Waters (平成の名水百選), from 162 nominations. There is no overlap, so there are 200 official waters in all, and unlike the 1985 list the 2008 one leaves some prefectures out. This page covers the original 1985 list only. For the 30th anniversary, in March 2016, the ministry held an online vote among the waters from both lists whose towns chose to enter: Azumino's wasabi springs came first for both sightseeing and scenery, and the taste category, judged on bottled products, went to Hadano's.
There is no official stamp rally, but there are collector cards. The cards for this list are numbered S001 to S100, in the same order as our entry numbers; the ministry supplies the template, and towns print them and give them away. Its card pages list 33 of the 100, and eight of those are marked as all given out. Where and how you get one is up to each town (Yorii gives one per person at the Yotteco centre outside the south exit of Yorii Station), so ask before you travel.
We found no entry that has dried up or closed for good since 1985, but several have changed. Less water rises now at Katsuraha Shimizu and at Imadegawa Shimizu, and in 2012 old maps showed that Imadegawa had been listed under the name of Deai Shimizu, a different spring 120 m away. Yamatomizu's source in Saitama has been off-limits since 2002 because of rockfall risk, Shasui Falls can no longer be approached at the plunge pool, and Ryusendo cave floods and closes every few years. The July 28, 2026 Kumamoto earthquake cut the water supply in Uto, sending residents to Todoroki spring with containers, and closed the Kikuchi Gorge until August 4; a separate earthquake on August 12 shut the Todoroki gorge in Isahaya, which partly reopened the next day. The 2024 Noto earthquake brought down the cloister and a hall of Sojiji Soin, the temple that uses Kowashudo spring. We check entries against each town's and operator's own announcements.
The list gets around. In Japanorama, season 19 of Jet Lag: The Game, the players race for seven days from Nishi-Oyama, the southernmost JR station, to Wakkanai at the top of Hokkaido. One of the challenges on the shared board, Flip One Of Japan's 100 Remarkable Waters, sends a team to any of the 100 with a water bottle: fill it with the remarkable water, flip it, land it upright, and sit out five minutes after every miss. If you try it yourself, pick a water where filling a bottle is welcome, like Shirakawa spring in Minami-Aso, rather than Nunobiki, where there is nowhere along the gorge to draw it.