The content of this product is provided by machine translation and may not reflect the actual information, please take this into consideration before booking.- Itinerary Features -• Located near Narita Airport, this onsen facility offers a unique and open-air experience where you can soak in the hot springs while watching planes take off and land.• The open-air bath offers a close-up view of the airport, a unique feature of the Sky Bath. The hot spring water originates from fossil seawater approximately 1,000 meters underground.• The spring contains an extremely rare concentration of iodine, approximately 1,500 times that of seawater.• Rich in metasilicic acid and bicarbonate ions, the water is smooth and moisturizing, which helps with skin care.• The facility features seven different types of baths, including a free-flowing hot spring, a kettle-shaped hot spring, and a high-concentration carbonated spring.• A sauna and bedrock bath are provided (※Children cannot use the sauna and bedrock bath).• Body care, foot care, beauty salon, and body scrubbing services are available for an additional fee.