100% source-flowing open-air bath
Hokkaido Hokuryu Town
"Sunflower Park Hokuryu Onsen" is a hot spring lodging facility located next to the roadside station "Sunflower Hokuryu" in Hokuryu Town, Hokkaido. Inside the building, marked by a gate guarded by two dragons, natural sodium chloride spring water gushes forth, and the open-air bath lets guests enjoy luxurious 100% source-flowing water straight from the spring. The sauna, known as "Hokuryu Sauna," is equipped with two types of sauna: a powerful dry sauna and a moist, refreshing mist sauna. It also pairs perfectly with the crisp, cold cold plunge bath filled with groundwater, allowing guests to spend blissful moments while feeling the refreshing breeze of Hokuryu Town, known as the land of sunflowers.
TypeNatural Hot Spring
A natural hot spring of sodium chloride spring water (weak alkaline, hypertonic spring). In the open-air bath, you can luxuriate in 100% source-flowing water, and it is also beloved as a "heat bath" thanks to its high heat-retention effect. Even after leaving the bath, the warmth lasts, and the skin feels moisturized and supple. In a bright bathing area inspired by sunflowers, you can enjoy a soothing time unique to Hokuryu Town.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity8people
A full-fledged dry sauna that forms part of the "Hokuryu Sauna." Powerful heat envelops your whole body and encourages a pleasant sweat. The interior, with its warm wooden atmosphere, is a calming space where you can quietly focus on yourself. It is available in both bathing areas that alternate daily between men and women, allowing you to enjoy an authentic sauna experience while taking in the rich natural surroundings of Hokuryu Town.
Sauna TypeMist Sauna
Capacity5people
A mist sauna wrapped in gentle steam. With its mild temperature setting, you can warm up thoroughly from the core while easing the strain on your body. The moisture-rich mist gently envelops your skin, delivering excellent relaxation effects. Recommended when you want to enjoy a gentle, soothing sweat experience that is different from the dry sauna.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity2people
A crisp, cold, continuously flowing cold plunge bath using groundwater. Its cool water quickly cools down your body after the sauna and leads you into a refreshing state of totonou. The soft feel of the groundwater on the skin creates little shock when entering, making the cooling sensation pleasantly comfortable.
Closed Days: None
〒078-2511 163-2 Itaya, Hokuryu Town, Uryu District, Hokkaido
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
100% source-flowing open-air bath
Hokkaido Hokuryu Town
"Sunflower Park Hokuryu Onsen" is a hot spring lodging facility located next to the roadside station "Sunflower Hokuryu" in Hokuryu Town, Hokkaido. Inside the building, marked by a gate guarded by two dragons, natural sodium chloride spring water gushes forth, and the open-air bath lets guests enjoy luxurious 100% source-flowing water straight from the spring. The sauna, known as "Hokuryu Sauna," is equipped with two types of sauna: a powerful dry sauna and a moist, refreshing mist sauna. It also pairs perfectly with the crisp, cold cold plunge bath filled with groundwater, allowing guests to spend blissful moments while feeling the refreshing breeze of Hokuryu Town, known as the land of sunflowers.
TypeNatural Hot Spring
A natural hot spring of sodium chloride spring water (weak alkaline, hypertonic spring). In the open-air bath, you can luxuriate in 100% source-flowing water, and it is also beloved as a "heat bath" thanks to its high heat-retention effect. Even after leaving the bath, the warmth lasts, and the skin feels moisturized and supple. In a bright bathing area inspired by sunflowers, you can enjoy a soothing time unique to Hokuryu Town.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity8people
A full-fledged dry sauna that forms part of the "Hokuryu Sauna." Powerful heat envelops your whole body and encourages a pleasant sweat. The interior, with its warm wooden atmosphere, is a calming space where you can quietly focus on yourself. It is available in both bathing areas that alternate daily between men and women, allowing you to enjoy an authentic sauna experience while taking in the rich natural surroundings of Hokuryu Town.
Sauna TypeMist Sauna
Capacity5people
A mist sauna wrapped in gentle steam. With its mild temperature setting, you can warm up thoroughly from the core while easing the strain on your body. The moisture-rich mist gently envelops your skin, delivering excellent relaxation effects. Recommended when you want to enjoy a gentle, soothing sweat experience that is different from the dry sauna.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity2people
A crisp, cold, continuously flowing cold plunge bath using groundwater. Its cool water quickly cools down your body after the sauna and leads you into a refreshing state of totonou. The soft feel of the groundwater on the skin creates little shock when entering, making the cooling sensation pleasantly comfortable.
Closed Days: None
〒078-2511 163-2 Itaya, Hokuryu Town, Uryu District, Hokkaido
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