
Osaka Osaka
2025/07/26 (Sat)
EXPO SAUNA “TAIYO’s TSUBOMI”
万博サウナ「太陽のつぼみ」
“EXPO SAUNA ‘TAIYO’s TSUBOMI’” will be located on the west side of the venue overlooking Osaka Bay, where you can experience the theme of the Expo, ‘Designing Future Society for Our Lives’, in a liberating seaside setting.
It is characterised by a beautiful, vibrant shape of petal-like air membrane cushions that gather to form a single bud and extend towards the sun. The sun’s energy pours down onto the ‘sun bud’, carrying with it air from the sea, plants, and wind. The space created by the delicate and strong membrane is filled with the energy of nature, which is intended to harmonise our body and soul and bring us back to our origins as human beings.
This sauna provides a completely new ‘co-creation’ space that embodies a ‘soft and warm’ future society, where the space covered with ETFE film* membrane material that transmits natural light is beautifully illuminated by LEDs and harmonises with the nature of Osaka Bay, which changes with the seasons and time.
*ETFE film: high-performance fluoropolymer rolled into film form. It is attracting attention as a material that can replace glass for new architectural expression.
【Reservation & Lottery】Yes
【Programme】
1. 【10:00~11:30】
“EXPO SAUNA ‘TAIYO’s TSUBOMI’” will be located on the west side of the venue overlooking Osaka Bay, where you can experience the theme of the Expo, ‘Designing Future Society for Our Lives’, in a liberating seaside setting.
2. 【11:50~13:20】
“EXPO SAUNA ‘TAIYO’s TSUBOMI’” will be located on the west side of the venue overlooking Osaka Bay, where you can experience the theme of the Expo, ‘Designing Future Society for Our Lives’, in a liberating seaside setting.
3. 【13:40~15:10】
“EXPO SAUNA ‘TAIYO’s TSUBOMI’” will be located on the west side of the venue overlooking Osaka Bay, where you can experience the theme of the Expo, ‘Designing Future Society for Our Lives’, in a liberating seaside setting.
4. 【15:30~17:00】
“EXPO SAUNA ‘TAIYO’s TSUBOMI’” will be located on the west side of the venue overlooking Osaka Bay, where you can experience the theme of the Expo, ‘Designing Future Society for Our Lives’, in a liberating seaside setting.
5. 【19:10~20:40】
“EXPO SAUNA ‘TAIYO’s TSUBOMI’” will be located on the west side of the venue overlooking Osaka Bay, where you can experience the theme of the Expo, ‘Designing Future Society for Our Lives’, in a liberating seaside setting.
【Capacity】18 Persons
【How to participate】In-person participation
【Supported services】
To be decided
【Features】
Lifestyle
Health & Beauty
【Viewing rules】
・Sauna and water bath are mixed gender bathing
・Wearing a swimsuit is mandatory.
・Please bring your own towel and swimsuit. Some towels are available for rent. Swimsuits are available for sale but not for rent.
・Please note that some designated areas are allowed for taking photos and conversation is allowed in the sauna.
・Take responsibility for your own physical condition and personal belongings
【Restrictions】
Not available for children under 6 years old. Children between 7 and 12 years old requiring accompanied by a parent or guardian.
Persons under the influence of alcohol, being pregnant, being contagious diseases, and other persons who have been prohibited from taking sauna or hot spring by a physician are not allowed to use the facilities.
Persons who conduct themselves in a manner that is deemed offensive to public order and morals or are judged inappropriate by the staff shall need to leave the venue.
【Reservation & Lottery】Yes
【Programme】
1. 【10:00~11:30】
“EXPO SAUNA ‘TAIYO’s TSUBOMI’” will be located on the west side of the venue overlooking Osaka Bay, where you can experience the theme of the Expo, ‘Designing Future Society for Our Lives’, in a liberating seaside setting.
2. 【11:50~13:20】
“EXPO SAUNA ‘TAIYO’s TSUBOMI’” will be located on the west side of the venue overlooking Osaka Bay, where you can experience the theme of the Expo, ‘Designing Future Society for Our Lives’, in a liberating seaside setting.
3. 【13:40~15:10】
“EXPO SAUNA ‘TAIYO’s TSUBOMI’” will be located on the west side of the venue overlooking Osaka Bay, where you can experience the theme of the Expo, ‘Designing Future Society for Our Lives’, in a liberating seaside setting.
4. 【15:30~17:00】
“EXPO SAUNA ‘TAIYO’s TSUBOMI’” will be located on the west side of the venue overlooking Osaka Bay, where you can experience the theme of the Expo, ‘Designing Future Society for Our Lives’, in a liberating seaside setting.
5. 【19:10~20:40】
“EXPO SAUNA ‘TAIYO’s TSUBOMI’” will be located on the west side of the venue overlooking Osaka Bay, where you can experience the theme of the Expo, ‘Designing Future Society for Our Lives’, in a liberating seaside setting.
【Capacity】18 Persons
【How to participate】In-person participation
【Supported services】
To be decided
【Features】
Lifestyle
Health & Beauty
【Viewing rules】
・Sauna and water bath are mixed gender bathing
・Wearing a swimsuit is mandatory.
・Please bring your own towel and swimsuit. Some towels are available for rent. Swimsuits are available for sale but not for rent.
・Please note that some designated areas are allowed for taking photos and conversation is allowed in the sauna.
・Take responsibility for your own physical condition and personal belongings
【Restrictions】
Not available for children under 6 years old. Children between 7 and 12 years old requiring accompanied by a parent or guardian.
Persons under the influence of alcohol, being pregnant, being contagious diseases, and other persons who have been prohibited from taking sauna or hot spring by a physician are not allowed to use the facilities.
Persons who conduct themselves in a manner that is deemed offensive to public order and morals or are judged inappropriate by the staff shall need to leave the venue.
\ AI recommends highlights /
- "Taiyo no Tsubomi" utilizes tetrahedral units composed of minimal aluminum frames, ETFE film, and air, achieving a lightweight and highly insulated soft design.
- It consists of three tetrahedral units: a sauna building, a cold bath building, and a relaxation lounge building. Each unit is connected by deck spaces, offering a new sauna experience in harmony with nature.
- ETFE film, despite being only 0.25mm thick, boasts durability exceeding 20 years and flame-retardant properties, making it a noteworthy new architectural material as an alternative to glass.
Place:EXPO SAUNA “TAIYO’s TSUBOMI”
Time:10:00~21:00 (10:00Start)
https://www.expovisitors.expo2025.or.jp/events/b015da00-744e-4786-a319-c98396da1a92
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