The 88th Fujihara Seminar:
Post-meeting Field Trip
The 88th Fujihara Seminar:
Post-meeting Field Trip
Last updated on JuLy 14, 2026
Horoman Peridotite & Mt. Apoi Geopark, Hidaka, Hokkaido
A one-day field trip to the Horoman Peridotite and Mt. Apoi Geopark will be conducted the day after the seminar. The Horoman peridotite massif is one of the world's best-studied exposures of upper-mantle rock, offering a rare opportunity to observe mantle petrology and structure in the field. Mt. Apoi Geopark, a UNESCO Global Geopark, hosts these outcrops together with a visitor center introducing the local geology and ecology.
Meeting Point: 7:50 AM, September 19 (Saturday), at the entrance of Grand Hotel New Oji (the seminar venue).
Departure / Return: Bus departs at 8:00 AM and returns to the hotel around 7:00 PM.
Transportation: Two chartered buses (round trip).
Capacity: TBD
Participation Fee: Free of charge (lunch and drinks are not included; please bring your own ).
Guide: Kazuki Matsuyama (Nagoya University)
Field Gear: Outdoor walking is involved at several stops, including a riverside. Comfortable walking shoes and weather-appropriate clothing are recommended.
The itinerary may be adjusted, or some stops skipped, depending on weather and time.
Please take your trash back with you.
We will cancel the trip in case of heavy rain.
8:00 — Depart Grand Hotel New Oji
9:30–9:45 — Rest stop: Michi-no-Eki Thoroughbred Road Niikappu
11:15–12:00 — Stop 1: Peridotite Plaza (in front of Samani Town Hall)
12:15–12:45 — Stop 2: Lunch near Mt. Apoi Geopark Visitor Center
12:45–13:30 — Mt. Apoi Geopark Visitor Center tour
13:45–14:45 — Stop 3: Horoman River mouth (pebble collecting)
15:00–15:45 — Stop 4: Enrumu Cape Viewpoint (optional, subject to schedule)
17:15–17:30 — Rest stop: Michi-no-Eki Thoroughbred Road Niikappu
19:00 — Arrive back at Grand Hotel New Oji
1. Peridotite Plaza (Stop 1)
An open-air exhibit of Horoman peridotite blocks near Samani Town Hall, introducing the massif before heading to the outcrops.
2. Mt. Apoi Geopark Visitor Center (Stop 2)
Exhibits on the geology, alpine flora, and Ainu culture of Mt. Apoi and the surrounding area.
3. Horoman River mouth (Stop 3)
Peridotite and related mantle-derived rocks can be collected as pebbles along the riverbed, offering a hands-on look at mantle mineralogy.
4. Enrumu Cape Viewpoint (Stop 4, optional)
A coastal viewpoint overlooking the Pacific Ocean and the Hidaka mountain range.