Okazaki Rakunoyu (大庭園露天風呂 おかざき楽の湯) in Okazaki, Aichi Prefecture, will hold a collaboration event with the Great Ieyasu-kō "Aoi" Busho-tai (グレート家康公「葵」武将隊) from Sunday, November 1 to Monday, November 30, 2026. Okazaki is the birthplace of Tokugawa Ieyasu, and the event brings the city's history together with baths and saunas, with the ruler of the realm standing at the bandai (attendant's seat) and Sengoku warlords delivering heat waves in the sauna.
The theme is "Ofuro de Tenka Toitsu!? (お風呂で天下湯一（てんかとういつ）！？)". During the period, a bright red bath inspired by Ii Naomasa's "akazonae" (red armor), a golden salt sauna inspired by Tokugawa Ieyasu, and limited-time dishes themed on Sengoku warlords will be available. On Monday, November 23 (national holiday), Tokugawa Ieyasu and Ii Naomasa will visit Rakunoyu for a heat-wave sauna event, a greeting at the bandai, a grand bingo game, and a rock-paper-scissors tournament.
Visitors can soak in the bath, feel the heat in the sauna, and enjoy a meal, all as a Sengoku experience unique to Okazaki.
Ii Naomasa's Bath: The Red Armor Comes to the Bath
Ii Naomasa is known as one of the Four Heavenly Kings of the Tokugawa (徳川四天王), and his "akazonae" red armor is closely associated with his name. For this event, part of the open-air bath is dyed a vivid red to evoke the world of the Sengoku warlords.
- Period: Sunday, November 1 to Monday, November 30, 2026
- Location: Men's and women's open-air scented baths
Tokugawa Ieyasu's Salt Sauna
The steam salt sauna will offer golden salt inspired by Tokugawa Ieyasu. The golden salt, fitting for the ruler of the realm, creates a sauna space that feels a little different from usual.
- Period: Sunday, November 1 to Monday, November 30, 2026
- Location: Men's and women's steam salt saunas
Sengoku Warlord Okazaki Mazemen at Rakuzen
To mark the collaboration, the dining hall Rakuzen (楽然) inside the facility will serve limited-time special menus, arranging its most popular dish, Okazaki Mazemen (岡崎まぜめん), with a Sengoku warlord theme. After soaking in the bath and working up a sweat in the sauna, visitors can finish with Sengoku-themed food.
- Period: Sunday, November 1 to Monday, November 30, 2026
- Location: Dining hall Rakuzen (食事処 楽然)
Ii Naomasa Akazonae Kimchi Mazemen (井伊直政 赤備えキムチまぜめん): ¥1,280 (tax included)
Tokugawa Ieyasu Tenka-tori Mazemen Gozen (徳川家康 天下取りまぜめん御膳): ¥2,180 (tax included)
November 23 Busho-tai Special Day
On Monday, November 23 (national holiday), Tokugawa Ieyasu and Ii Naomasa of the Great Ieyasu-kō "Aoi" Busho-tai will visit Okazaki Rakunoyu. In the sauna heat-wave event, Ii Naomasa appears in the sauna room and delivers heat waves. Tokugawa Ieyasu will also greet visitors at the bandai, and the Busho-tai will hold a grand bingo game and a rock-paper-scissors tournament.
Date: Monday, November 23, 2026 (national holiday)
| Time | Event |
|---|---|
| 10:00 AM to 12:00 PM | Tokugawa Ieyasu appears at the bandai |
| From 11:30 AM | Ii Naomasa heat-wave event (men's Stadium Sauna) |
| From 2:00 PM | Busho-tai grand bingo (1F rest area) |
| 2:30 PM to 3:30 PM | Tokugawa Ieyasu appears at the bandai |
| From 3:30 PM | Busho-tai rock-paper-scissors tournament (1F rest area) |
Sustainaburo® (サステナブロ®): Warming the Community From the Bath
Rakunoyu is working on the sustainable public bath initiative Sustainaburo® (サステナブロ®) under the theme of "warming the community from the bath." Starting from a bathing facility close to local life, the initiative aims to connect people, the community, and the future. This collaboration is one part of that effort.
Okazaki is widely known as the birthplace of Tokugawa Ieyasu. By combining its history and culture with the familiar experience of baths and saunas, the event aims to give even people who have not been interested in history a chance to discover the appeal of the area.
Event Information
- Event name: Great Ieyasu-kō "Aoi" Busho-tai × Okazaki Rakunoyu Collaboration Event (グレート家康公「葵」武将隊 × おかざき楽の湯 コラボイベント)
- Period: Sunday, November 1 to Monday, November 30, 2026
- Special event day: Monday, November 23, 2026 (national holiday)
- Location: Okazaki Rakunoyu (大庭園露天風呂 おかざき楽の湯)
- Contents: Ii Naomasa's Bath (井伊直政の湯) / Tokugawa Ieyasu's Salt Sauna (徳川家康の塩サウナ) / Ii Naomasa heat-wave event / Busho-tai grand bingo / Busho-tai rock-paper-scissors tournament / Tokugawa Ieyasu appearance at the bandai
- Collaboration: Great Ieyasu-kō "Aoi" Busho-tai (グレート家康公「葵」武将隊)
Facility Information
- Facility: Okazaki Rakunoyu (大庭園露天風呂 おかざき楽の湯)
- Established: January 2007
- Address: 1-14-14 Shojida, Okazaki, Aichi 444-0821
- Phone: 0564-71-1010
- Website: https://rakunoyu.com/okazaki/
About the Great Ieyasu-kō "Aoi" Busho-tai
The Great Ieyasu-kō "Aoi" Busho-tai is a tourism PR warlord troupe based in Okazaki, Aichi Prefecture, the birthplace of Tokugawa Ieyasu. It consists of six members, including Tokugawa Ieyasu and his retainers. Through martial demonstrations at Okazaki Castle Park, hospitality for tourists, and appearances at events around the country, the troupe shares Okazaki's history, culture, and local appeal with Japan and the world. Since starting activities in 2011, it has been a familiar presence in the community.
