Kanto, where cities spread out around Tokyo
Kanto lies in eastern Honshu and consists of seven prefectures: Ibaraki, Tochigi, Gunma, Saitama, Chiba, Tokyo, and Kanagawa.
Many cities spread out around Tokyo, while mountains extend across the north and west. The eastern and southern sides of the region face the Pacific Ocean.
Explore Kanto on the map and look for hot springs with me.
Explore the hot springs of Kanto on the map
Select a ♨ marker to see information such as the hot spring or source name, recorded area, temperature at the time of investigation, pH, and sampling date.
You can also search by hot spring name, source name, or municipality using text, or use the microphone button to search by voice.
Look beyond the Tokyo area to the mountains and the coast. You may find a hot spring record near a city you know or somewhere you would like to visit.
About the map data
The ♨ markers represent historical records included in AIST’s Hot Spring Chemical Analysis Data. They are not a list of hot spring facilities currently in operation, and the dates of investigation vary by location.
A place without a marker does not necessarily have no hot springs. Each marker shows an approximate location and does not indicate the exact site of a spring or the entrance to a facility.
The displayed temperature was measured at the source and may differ from the temperature of the water in a bathing pool. The pH value is only a guide to acidity or alkalinity. Temperature and pH alone cannot determine a hot spring’s type or therapeutic effects.
How many hot springs are there in Kanto?
According to the Ministry of the Environment, Kanto has 387 hot spring areas and 2,280 hot spring sources. Together, they discharge 228,259 liters of water per minute.
The number of hot spring areas and the number of sources are not the same. A single hot spring area may contain multiple sources.
The data card lets you compare Kanto’s number of hot spring areas, total number of sources, and discharge volume with the figures for Japan as a whole.
How do you feel about finding more than 2,000 hot spring sources in a region with so many cities?
What I noticed while making the map
On the Kanto map, hot spring markers appear to be spread across the region.
I was surprised to find so many sources in a region known for its large cities.
You may also discover hot spring records near familiar cities in places you did not know about before.
What differences do you notice when you compare Kanto with hot springs around major cities in your country?
Why not explore the map to find a hot spring in Kanto that you would like to visit?
Japan / Tohoku / Koshinetsu
Sources: Ministry of the Environment, Hot Spring Use in Fiscal 2024 (data as of March 31, 2025); Geological Survey of Japan, AIST, Geothermal Resources of Japan: Hot Spring Chemical Analysis Data (published in 2020)
The data card uses Ministry of the Environment statistics, while the ♨ markers use AIST’s historical analysis records. The scope, reference date, and counting method differ, so the figures are not expected to match. Before visiting, check the facility’s or local government’s official information for its current location and operating status.