Olive Onsen
TypeNatural Hot Spring
A chloride spring rising from 1,600 meters underground. Its high salt content warms the body from the core and is known as a beauty hot spring.
Refreshing sauna with sea views on Shodoshima
Kagawa Tonosho Town, Shozu District
Olive Onsen Manten no Yu is a day-use hot spring on Shodoshima. After working up a good sweat in the spacious far-infrared sauna, refresh yourself in the deeper cold plunge bath. The facility's greatest appeal is the open-air bath area with panoramic views of the Seto Inland Sea, where you can enjoy the island's gentle sea breeze and a liberating totonou experience.
TypeNatural Hot Spring
A chloride spring rising from 1,600 meters underground. Its high salt content warms the body from the core and is known as a beauty hot spring.
Sauna TypeDry Sauna
Stove Typefar_infrared
Capacity16people
A spacious, airy far-infrared sauna. It feels dry yet promotes steady sweating, and you can relax while watching TV.
Sauna TypeMist Sauna
Capacity5people
A mist sauna located in one of the gendered bathing rooms on alternating days. Recommended for those who prefer gentle, mild warming.
Water Qualitytap
Capacity6people
A roomy cold plunge bath with depth around the waist. At about 18°C, it has a pleasant chill that allows for longer, comfortable immersion.
Closed Days: Tuesday
761-4100 Kagawa Prefecture, Shodoshima-gun Tonosho-cho Ko Han-no-ike Ko 1360-10, Japan
Gender Access
Gender Separated

Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more
Refreshing sauna with sea views on Shodoshima
Kagawa Tonosho Town, Shozu District
Olive Onsen Manten no Yu is a day-use hot spring on Shodoshima. After working up a good sweat in the spacious far-infrared sauna, refresh yourself in the deeper cold plunge bath. The facility's greatest appeal is the open-air bath area with panoramic views of the Seto Inland Sea, where you can enjoy the island's gentle sea breeze and a liberating totonou experience.
TypeNatural Hot Spring
A chloride spring rising from 1,600 meters underground. Its high salt content warms the body from the core and is known as a beauty hot spring.
Sauna TypeDry Sauna
Stove Typefar_infrared
Capacity16people
A spacious, airy far-infrared sauna. It feels dry yet promotes steady sweating, and you can relax while watching TV.
Sauna TypeMist Sauna
Capacity5people
A mist sauna located in one of the gendered bathing rooms on alternating days. Recommended for those who prefer gentle, mild warming.
Water Qualitytap
Capacity6people
A roomy cold plunge bath with depth around the waist. At about 18°C, it has a pleasant chill that allows for longer, comfortable immersion.
Closed Days: Tuesday
761-4100 Kagawa Prefecture, Shodoshima-gun Tonosho-cho Ko Han-no-ike Ko 1360-10, Japan
Gender Access
Gender Separated

Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more