I am not sure if everything in this video is part of the San’in Kaigan Geopark, but it certainly conveys the general feel of the place.
Daisen last erupted in the Pleistocene, per the Global Volcanism Program.
According to Wikipedia, one of the most popular destinations here is Genbudo Park, with its five caves and lovely basalt columns, but let’s look at views of Toyooka, too.
I like it that UNESCO geoparks include the human aspects of places, too.
Featured image: Hashi Photo, CC BY 3.0 DE