According to Ministry of the Environment statistics, Tochigi (Kanto) has 66 onsen areas and 633 hot-spring sources. This page lists 51 onsen in Tochigi with their water types. The most common water type among them is Chloride Spring (22 onsen).
Source: Ministry of the Environment, FY2024 Hot Spring Utilization Survey (as of March 31, 2025). Best-known onsen = most annual Wikipedia views.
| Water Type | Count | Share |
|---|---|---|
| Chloride Spring | 22 | 43% |
| Simple Thermal Spring | 11 | 22% |
| Sulfur Spring | 6 | 12% |
| Unknown | 5 | 10% |
| Sulfate Spring | 3 | 6% |
| Bicarbonate Spring | 2 | 4% |
| Other | 2 | 4% |
| Facility | Water Type |
|---|---|
| Shiobara Onsen Villages | Sulfur Spring Sulfur, acidic, sulfate, chloride, bicarbonate and simple springs |
| Shika no Yu A communal bathhouse with over 1,300 years of history, the birthplace of Nasu Onsen, lined with several baths of differing temperatures. | Sulfur Spring Sulfur-bearing calcium/sodium – sulfate/chloride spring |
| Oyama Omoigawa Onsen | Unknown |
| Spa Resort Rib Max | Unknown |
| Nikko City Yunishigawa Mizu no Sato | Simple Thermal Spring Simple spring |
| Nasu-Shiobara Ekimae Onsen | Chloride Spring Sodium/calcium chloride spring |
| Tochigi Onsen Yuraku no Sato | Bicarbonate Spring Bicarbonate spring (baking-soda spring) |
| Name | What kind of onsen |
|---|---|
| Santoya Onsen Details | A hot spring at about 1,460m on the flank of the Nasu mountains, reached by a 2–3 hour walk from the pass-side teahouse — a lone lodge with no road access, also known as a lamp-lit inn. |
| Onsen Town | Summary |
|---|---|
| Nasu Onsen Villages Legends & Origins | Near the hot spring stands 'Sesshoseki' (the Killing Stone), tied to a legend that the fox spirit Tamamo-no-Mae, who had ingratiated herself with Emperor Toba, was unmasked as a nine-tailed fox, fled to the Nasuno plain, and was slain by imperial forces, her body turning into a poisonous stone. Volcanic gas still vents from around the stone today. Details |
| Nasu Onsen Villages Literature | Said to be a place where Basho stayed long during his Narrow Road to the Deep North journey. Visiting Sesshoseki, he wrote that 'the poisonous vapor of the stone has not yet faded; bees and butterflies lie dead in such numbers their true color cannot be seen beneath the sand,' and composed the haiku 'Ishi no ka ya / natsukusa akaku / tsuyu atsushi.' Details |
| Kita Onsen Travelogue | A single inn in a gorge 400 m below the road in the Nasu mountains. Its wooden buildings, hung with a tengu mask and looking much as they did in the 1960s–70s, and its large bath remain today, making it a pilgrimage site for hidden-spring fans as an emblem of Tsuge Yoshiharu no Onsen. Details |