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Excursion

We are pleased to offer a total of five excursion courses. These include: (1) three separate courses focusing on volcano-related disaster management measures, respectively visiting Mt. Tokachi, Mt. Tarumae and Mt. Usu ― active volcanoes in Hokkaido; (2) a course presenting pioneering Sabo (erosion control) projects undertaken prior to Sapporo's urban development; and (3) a course exploring the history of Hokkaido within the city of Sapporo. Please note that the number of participants accepted for each course is limited, and we may not be able to accomodate all preferences.

※All courses require a minimum of 25 participants. Fees include lunch and admission charges.

Excursion.1) Exploring the History of Hokkaido - "History of Hokkaido Development"
This course offers an opportunity to explore 157 years of Hokkaido’s development within the city of Sapporo. Participants will visit the Former Hokkaido government office building (Red brick office), which served as the center of Hokkaido’s administration; Hokkaido University, a major center for education and research in Hokkaido, has long served as a foundation for the region’s development and pioneering history; the Historical village of Hokkaido, an open-air museum showcasing the pioneering history of the region; and the Sapporo beer museum, where Hokkaido’s first beer was brewed.
For lunch, you will enjoy “Genghis Khan” grilled mutton.
Former Hokkaido government
office building (Red Brick Office)
Historical village of Hokkaido Sapporo beer museum

Excursion.2) Mt. Tokachi - Volcanic Region Sabo Works
"100 Years since Japan’s Largest Sediment Disaster Caused by Snow-melt Type Volcanic Mudflow"
Mt. Tokachi, an active volcano, marks 100 years since the snow-melt type volcanic mudflow of 1926 (Taisho 15). This excursion offers visits to well-maintained Sabo facilities and observation decks, as well as notable sites such as the "Blue Pond". Participants will gain insights into volcanic disaster mitigation, the benefits provided by volcanic environments, and strategies for coexisting with active volcanoes.
Biei River Stream Sabo works Nukkakushi Sabo dam at Furano River “Bule Pond” on Biei River

Excursion.3) Mt. Tarumae and 2018 Hokkaido Eastern Iburi Earthquake
“Slope Failures and Landslides of Tephra Layers on Mountainsides Caused by Large Earthquakes
⇒ River Channel Blockage and Countermeasures Against Snow-melt Type Volcanic Mudflows at Volcanoes Near Urban Areas”
At Mt. Tarumae, an active volcano, participants will visit Sabo facilities and observe measures implemented following the 2018 Hokkaido Eastern Iburi Earthquake. The excursion also includes a visit to Upopoy (National Ainu Museum and Park) to learn about the culture of the indigenous Ainu people of Hokkaido.
Oboppu River Sabo dam at Mt. Tarumae Slope failures and sediment dam
in Hidaka-Horonai River
Upopoy (National Ainu Museum and Park)

Excursion.4) Mt. Usu - Volcanic Region Sabo Works
"Sediment Disaster Mitigation in Volcanic Region Where Are in Extremely Close Proximity to Human Production and Living Zones"
Mt. Usu, an active volcano, erupted in 1977 and 2000, causing extensive damage. Despite the large-scale impact of the 2000 eruption, timely evacuations prevented loss of life. This excursion includes visits to observation points, Sabo facilities constructed before and after the eruptions, and disaster remnants from the 2000 eruption, providing insights into volcanic mitigation, the benefits of volcanic environments, and strategies for coexisting with active volcanoes.
Mt. Usu erupted in 2000 Nishiyama River Sabo dam at Mt. Usu Toyako Onsen district

Excursion.5) Kotoni-Hassamu River - Urban Sabo Works in the Major City of Sapporo
"Sabo Works that Preceded Urbanization and Laid the Foundation for Sapporo’s Development"
The Kotoni-Hassamu River is the first stream in Hokkaido where Sabo works were carried out in 1958. Participants will visit Sabo facilities that were developed prior to urbanization, as well as popular sightseeing spots such as the Hitsujigaoka Observation Hill and the Okurayama Ski Jump Stadium. The excursion also includes a lunch featuring Hokkaido's famous "Genghis Khan" grilled mutton.
Kotoni-Hassamu River flowing
through urban Sapporo
Kotoni-Hassamu River
(First stream Sabo works in Hokkaido)
Hitsujigaoka Observation Hill




Copyright © Organizing Committee of INTERPRAEVENT International Symposium 2026