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Lake Mashu Tourism Association

Jun. 12, 2025

[Image1]Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the be

[Image2]Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the be

[Image3]Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the be

[Image4]Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the be

[Image5]Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the be

[Image6]Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the be

[Image7]Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the be

[Image8]Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the be

[Image9]Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the be

[Image10]Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the be

[Image11]Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the be

[Image12]Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the be

[Image13]Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the be

[Image14]Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the be

[Image15]Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the be

<Atosanupuri Trekking Tour>

Atosanupuri, whose name means “bare mountain” in the Ainu language. About 1,500 fumaroles and the beautiful yellow sulfur crystals that spread around them have been designated Teshikaga’s "Specified Natural Tourism Resource," and the mountain is a restricted access area under Article 19 of the Ecotourism Promotion Act.

If you are seeking a special and rare trekking experience, please join us.
Advance reservations are required, so don’t forget to book!

Limited guided climbs led by certified guides / Winner of the Minister of the Environment Award at the 18th Ecotourism Awards
https://masyuko.or.jp/enjoy/atosanupuri_trekking_tour/...

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masyuko.or.jp

【ひがし北海道の活火山を登る】アトサヌプリトレッキングツアー｜弟子屈を楽しむ｜弟子屈なび｜北海道弟子屈町

アイヌ語で「裸の山」を意味するアトサヌプリ。およそ1500の噴気孔と、噴気孔の周囲に広がる美しい黄色の硫黄結晶は、弟子屈町の「特定自然観光資源」に指定され、山はエコツーリズム推進法第19条に基づく立ち入り制限区域に指定されています。この場所に立ち入ることができるのは、弟子屈町のまちづくり団体「てしかがえこまち推進協議会」が定める基準をクリアした認定ガイドによるツアー参加者のみ。火山らしいダイナミックな風景と迫力ある噴気孔、硫黄採掘の歴史に触れる遺構など、この場所ならではの特別な光景が待っています。本ツアーはエコツーリズムの優れた取り組みを表彰する環境省と日本エコツーリズム協会が主催し、良質な地域の体験、情報の提供（2）地域資源の保全と持続的利用に向けた取り組み（3）地域の振興や活性化への貢献が評価されるエコツーリズム大賞（第18回）にて環境大臣賞を受賞するなどツアーの価値を高めています。ぜひ、アトサヌプリの体験を通じて地球の鼓動を感じてください。

Mount Iō

Mount Iō, Kawayu, Teshikaga, Kawakami District, Hokkaido 088-3461, Japan

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Tracing the grand caldera of volcanoes, forests, and lakes: the Mashu–Kussharo Trail (MKT) The Mashu–Kussharo Trail (MKT) is a walking route roughly 62 km long that links the first Mashu Lake observation deck to Bihoro Pass. MKT divides into three sections, so you can either through-hike it over three days or tackle the sections separately across several trips. Enjoy it in whatever style suits you. https://masyuko.or.jp/enjoy/mkt/

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[Reservation Required] Summer 2025: Town Tour Bus Operated with the “Teshikaga Eco Passport”! We are announcing the Summer 2025 operation schedule for the Mashu–Kuttari (Mashu–Kushiro) sightseeing loop bus that visits the main scenic spots in Teshikaga. The loop bus ticket, the Teshikaga Eco Passport, will again be available this year in two types: a 2-day pass and a 3-day pass. Please reserve in advance and make full use of it. It’s recommended for anyone who feels uneasy about driving or who wants an easy way to enjoy sightseeing in Teshikaga. [Operation Period] Saturday, July 26, 2025 – Sunday, August 31, 2025 [Fares] Adult Child 2-day pass (2 days) 2,000 yen 1,000 yen 3-day pass (3 days) 3,000 yen 1,000 yen [Inquiries] Mashu-ko Tourism Association 015-482-2200 (Weekdays 9:00–17:00) [Open Only During the Period] Eco Pass Stations JR Mashu Station 9:30–16:30 JR Kawayu Onsen Station 8:30–16:30 070-8995-2599 (Eco Pass dedicated line) https://masyuko.or.jp/news/2025summermoekopassaruyo/

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