7 Onsen in Tokyo worth your time

A collection of diverse public hot springs on a volcanic island, offering everything from coastal wild baths to mountain views.

What it is

• A group of hot spring facilities managed by Hachijo Town on a volcanic island.
• The springs are located in the Sakaue district of Mihara Mountain.
• Multiple facilities are available for visitors using a one-day bathing pass.
• The BU-SU-PA pass provides combined access to local bus travel and hot spring entry.

What to see

• Kashitate Mukaizato Onsen features a sodium-chloride strong salt spring.
• Uramigataki Onsen is a free outdoor bath where swimwear is required for entry.
• Sueyoshi Onsen contains iodine and sodium-chloride strong salt water.
• Borawazawa Onsen is a free public bath located near a local fishing port.
• Shioma Onsen is a wild bath situated directly on the coastline.
• Nakanogo Onsen features a hot spring source with a temperature of sixty-one degrees Celsius.

When to go

• Visit Shioma Onsen only during low tide to access the coastal bath.

Read more about Hachijō-jima Onsen

A wild, iron-rich hot spring on Shikinejima Island where bathers mix seawater with volcanic water in natural rock pools.

What it is

• A free mixed-gender wild hot spring located on a rocky coast.
• An iron sulfide spring with a source temperature of eighty degrees Celsius.
• A natural bath named after rock formations shaped like a cleaver.
• A site where spring water is piped to the nearby Matsugashita Miyabi-yu.

What to see

• Distinctive red-colored water caused by high iron content.
• An access path built by stonecutters in nineteen-oh-nine.
• A commemorative inscription carved directly into the rock wall.
• Natural pools where seawater and hot spring water merge.

When to go

• Visit during low or mid-tide to properly adjust the water temperature with seawater.

Getting there

• Walk twenty-five minutes from Nobushi Port to reach the site.

Read more about Jinata Onsen

A modern hot spring facility at the base of Mount Takao offering diverse indoor and outdoor baths for hikers.

What it is

• A hot spring facility opened in 2015 at the base of Mount Takao.
• The facility is operated by the Keio Group as a Gokurakuyu franchise.
• The water is classified as an alkaline simple hot spring sourced from on-site drilling.
• The venue includes a restaurant, massage services, and a souvenir shop.

What to see

• Outdoor natural rock baths and carbonated baths for soaking.
• Indoor bathing area featuring a cypress bath and a sauna.
• A restaurant serving meals operated by Restaurant Keio.

When to go

• Open year-round without any scheduled holidays.
• Daily operating hours are from 8:00 AM until 11:00 PM.

Getting there

• Located immediately adjacent to Takaosandoguchi Station on the Keio Line.

Official site

www.takaosan-onsen.jp

Read more about Keio Takaosan Onsen

A multi-level entertainment complex in Tokyo featuring a natural hot spring spa, diverse shopping, and unique urban amusement park rides.

What it is

• A commercial complex opened in 2003 operated by the Tokyo Dome Corporation.
• Features a natural hot spring spa using sodium chloride strong salt water.
• The facility offers free admission to the grounds for all visitors.
• The building contains multiple floors of retail shops and various restaurants.

What to see

• The Thunder Dolphin roller coaster that travels through the complex.
• Big O, a centerless Ferris wheel standing eighty meters high.
• The Wonder Drop water ride located within the facility grounds.
• Spa LaQua, including the Healing Baden area for guests aged eighteen and older.
• A membership fitness club situated on the seventh floor of the building.

Read more about LaQua

A tranquil hot spring facility featuring a massive Japanese garden and mineral-rich waters pumped from deep underground in Tokyo.

What it is

• A hot spring facility opened in 2003 in Tokyo Nerima Ward.
• The site occupies the former location of the Keihantei restaurant.
• Landscape architect Kenzo Ogata designed the expansive facility grounds.
• The facility features a sodium-chloride strong salt spring from 1,445 meters underground.

What to see

• A traditional Japanese garden spanning 1,200 tsubo of land.
• A two-story building housing various saunas and spa facilities.
• The Bade Zone where visitors use the pools while wearing swimwear.
• Open and closed relaxation areas designed for guest comfort.

Getting there

• The facility is a one-minute walk from Toshimaen Station.

Official site

www.seibu-leisure.co.jp

Read more about Toyoshimaen Niwa no Yu

Tokyo's only hot spring village features a historical cold mineral spring where legend says ancient royalty once bathed.

What it is

• The only hot spring village located within Tokyo in Ome City
• A historical site founded approximately 1200 years ago
• Legendary bathing spot of Yamato Takeru with armor stored in a stone warehouse
• Mamadaya remains the only operating inn as of June 2026

What to see

• A designated historical hot spring source classified as a sulfur and alkaline simple spring
• Cold mineral spring water originating at 20 degrees Celsius
• Traditional accommodations at the last remaining inn in the village

Getting there

• Take a Seibu or Toei bus from Hanno Station
• The bus journey takes approximately 20 minutes to reach the area

Read more about Iwakura Onsen

A deep-drilled natural hot spring in Tokyo's business district providing mineral-rich water to a luxury hotel and fitness club.

What it is

• A sodium chloride strong salt spring officially certified in 2014.
• The spring was developed 1,500 meters underground as part of disaster preparedness measures.
• The facility serves as a water source for recovery workers during major disasters.
• The water is utilized by the Hoshinoya Tokyo hotel and a local fitness club.

What to see

• Natural spring water that is slightly black and viscous in appearance.
• The SPA Otemachi Fitness Club where the mineral water is used.
• The Otemachi Financial City Grand Cube building where the facility is located.

Read more about Ōtemachi Onsen