Otsu Onsen Ofuro Café Biwakoza
"Otsu Onsen Ofuro Café Biwakoza" is a day-use hot spring facility located in Otsu City, Shiga Prefecture. It features a rare natural radon hot spring that fills all the baths, and an automatic löyly sauna that activates over 20 times a day for a refreshing sweat. After refreshing with a mud pack and cold plunge bath, you can freely enjoy the café, restaurant, popular theater, and a wide selection of comics in the Japanese-modern interior, inspired by the post towns of the Tokaido. Accommodation is available at the adjacent hotel, allowing for a luxurious experience from morning till night.
Facility Name
Otsu Onsen Ofuro Café Biwakoza
Facility Type
Onsen & Spa・Hotel & Ryokan
Address
1-9-18 Tsukinowa, Otsu City, Shiga Prefecture
Closed Days
None
Business Hours
Monday 10:00〜01:00
Tuesday 10:00〜01:00
Wednesday 10:00〜01:00
Thursday 10:00〜01:00
Friday 10:00〜01:00
Saturday 10:00〜01:00
Sunday 10:00〜01:00
Holiday 10:00〜01:00
Tattoo Policy
🚫 No Tattoos
♨️Hot Spring Information
♨️
Old Biwako Radon Bath
Natural Hot Spring
A rare natural radon hot spring sourced from 1500m underground, unique to the Kinki region. This source is used in all baths, allowing you to enjoy the same quality in the indoor bath, open-air bath, and lukewarm bath. The water has a smooth texture and the characteristic moist feeling of chloride springs, with warmth that lasts long after bathing. The effects of radon help remove active oxygen from the body and are expected to be beneficial for chronic muscle and joint pain, sensitivity to cold, and dry skin. The open-air bath features a mud pack made from montmorillonite from Yamagata Prefecture, with mineral-rich mud that smooths the skin. This is a therapeutic bath that warms you from the core and heals fatigue from the root.
Sauna & Cold Bath Information
🔥
Dry Sauna (Automatic Löyly Sauna)
Male
90°C
A dry sauna equipped with the latest iki sauna. From 11:00 to 24:00, automatic löyly activates three times every hour at 00, 20, and 40 minutes, pouring water over heated sauna stones to spread hot steam throughout the room. The spacious room can seat up to 30 people, with tiered seating allowing you to choose your preferred heat level. Following the Nordic Finnish bathing method, you can sweat thoroughly and feel completely refreshed. With over 20 automatic löyly sessions a day, you can enjoy a different heat experience each visit.
Sauna Type
Dry Sauna
Stove Type
Convection Stove (Sauna Stone)
Capacity
30people
❄️
Cold Bath
Male
16°C
A cold plunge bath located next to the sauna. It has a moderate coolness to gently lower your body temperature after the sauna. The depth and width are just right, allowing you to submerge up to your shoulders comfortably. After thoroughly cooling your body, enjoy an outdoor air bath and relaxation time in the outdoor area or indoor rest spaces. Alternating between the warmth of the hot spring, the heat of the sauna, and the coolness of the cold plunge bath promotes circulation and leads to a deep refreshment of body and mind.
Water Quality
Tap Water