Participants enjoying the sauna.

TTNE Co., Ltd. (Headquarters: Minato-ku, Tokyo; Representative Director: Dai Matsuo), a creative sauna collective, has collaborated with "SAUNA SHIP," a next-generation wellness event held in Seongsu, one of Seoul's premier trend-setting districts.

While [TTNE] is expanding its global activities, including speaking at the world's largest international sauna conference, it is strengthening its relationship with South Korea, which is gaining attention as the next hub for sauna culture in Asia.

[TTNE]'s Tent Sauna

[TTNE]'s tent sauna installed on the rooftop of "Seongsu."

In this collaborative event, [TTNE]'s tent sauna was installed on the rooftop of "SEOUL BREWERY Seongsu," a landmark in "Seongsu," a district where the latest fashion, art, and creative culture converge.

This offered a new sauna culture experience enjoyed on rooftops in natural and urban settings.

Event Participants

Currently, interest in sauna as a lifestyle and in "wellness" is rapidly growing in South Korea, particularly among young people. Moving beyond the traditional Jjimjilbang and Hanjeungmak culture, "Finnish-style sauna" is gaining attention as a new cultural phenomenon enjoyed on rooftops in natural and urban settings.

Building Bridges Between Japanese and Korean Sauna Cultures

[TTNE] has produced numerous facilities and created sauna culture, and is now expanding its expertise and passion to Asia and the rest of the world.

This collaboration with "SAUNA SHIP" went beyond simply providing a tent sauna; it was an initiative to directly convey Japanese sauna culture (how to enjoy löyly, alternating hot and cold baths, approaches to achieving 'totonou') to Korean creators and sophisticated participants.

The event was fully booked even at the pre-reservation stage and, under the philosophy of "strangers become friends through sweat (SAUNASHIP)," served as a venue demonstrating the potential for a new cross-border sauna community.

The [TTNE] tent sauna, installed on the rooftop overlooking the cityscape of Seongsu, provided an authentic Finnish sauna experience with powerful heat and comfortable steam (löyly). Participants enjoyed an ice bath (cold plunge) with the urban breeze, relaxation guided by experts, and a limited craft beer jointly developed by SAUNA SHIP and Seoul Brewery, offering a new sauna culture experience that engaged all five senses. [TTNE] will continue to accelerate its efforts to connect Japanese and Korean, and global sauna cultures by joining hands with sauna creators in various Asian countries, including South Korea.

Participants enjoying the tent sauna.

◼︎ Event Overview

SAUNA SHIP VOL. 02 — 사우나십 비어 런칭 파티 (SAUNA SHIP BEER LAUNCH PARTY)

Date & Time: June 20 (Sat) - 21 (Sun), 2026

Location: SEOUL BREWERY Seongsu (Seongsu-dong, Seoul, South Korea)

Content:

・Finnish-style tent sauna experience provided by [TTNE]

・Relaxation with ice bath & assisted stretching

・Launch of limited collaboration beer "SAUNA SHIP × SEOUL BREWERY"

・Finnish-style brand market "SAUNA TORI"

TEAM SAUNASHIP

Founder Shim Yong-seok @saunasim

Co-Founder Jeong Gi-woo @saunajung

Operations & PM Kim Da-sol @tomost_dada

Creative Director Kim Song-ui @washiiness

About [TTNE]

[TTNE] is a creative sauna collective led by "Totono-e Oyakata" (Dai Matsuo) and "Sauna Shisho" (Daisuke Akiyama), continuously driving innovation in saunas.

They have launched various sauna projects, including producing over 100 sauna facilities, the industry-first specialized sauna brand SHOP[TTNE], the "Japan Sauna Society" for medical research on saunas with over 500 registered medical professionals, the "SAUNACHELIN," one of Japan's largest sauna ranking sites with over 1 million PV annually, the world's first sauna-specific "SAUNA37" World Sauna Awards, and "SAUNA SELECT," a specialized site for the construction of saunas for home and business use, carefully selected from around the world.

As the only "PREMIUM SAUNA PARTNER" recognized by HARVIA JAPAN Co., Ltd., they operate sauna dealers nationwide and are dedicated to improving sauna culture both domestically and internationally, sweating for the sake of saunas.

Totono-e Oyakata

Totono-e Oyakata (Dai Matsuo), Professional Saunaist

A businessman and professional saunaist who produces sauna facilities nationwide while managing multiple companies. Known as "Totono-e Oyakata" for guiding many people to the state of "totonou." Together with Daisuke Akiyama (Sauna Shisho), he founded the creative sauna collective "TTNE" and the "Japan Sauna Society," engaging in various fields within the sauna world. He also serves as the world's first "Harvia Global Ambassador," developing cutting-edge sauna spaces integrated with architecture and design both in Japan and abroad. His book includes "Sauna Techniques to Change Your Life."

Sauna Shisho (Daisuke Akiyama), Professional Saunaist

A professional saunaist active on the world stage while managing a branding company focused on events. He has produced Japan's largest sauna events and awards, as well as innovative sauna spaces. For the 2025 Osaka-Kansai Expo, he served as the general producer for the official event, Expo Sauna "Taiyo no Tsubomi." Appointed as a Global Ambassador by the world's No. 1 sauna brand "Harvia," he is recognized internationally as a key figure leading Japanese sauna culture into the future. He is creating a next-generation sauna culture that connects with the world by combining Japanese sensibility with a global perspective.

Sauna Shisho

<Official Sites>

TTNE : https://ttne.jp

Specialized Sauna Brand SHOP[TTNE] : https://www.ttne.shop

Japan Sauna Society : https://www.ja-sauna.jp

SAUNACHELIN : https://www.saunachelin.com

SAUNA37 : http://sauna37.com

SAUNA SELECT : https://sauna-select.com

Totono-e Oyakata: https://www.instagram.com/totonoeoyakata

Sauna Shisho: https://www.instagram.com/saunashisho

◾️Inquiries regarding this matter

TTNE Co., Ltd. Contact: Kakuzaki

Email: [email protected]

Tel: 03-5843-7576

FACT BOX

  • Source: PR TIMES
  • Category: Event
  • Organizations: SEOUL BREWERY / SAUNA SHIP / HARVIA JAPAN