Day 5: Mt. Aso, Helicopter Ride, Kusarenri Observatory, Mt. Aso Museum, Daikanbo Observatory. Journey to Mount Aso: A Scenic Adventure Today’s drive to Mount Aso is an exhilarating adventure, characterized by a series of steep hairpin turns over a 1.5-hour journey. This drive can be quite challenging, especially for those unfamiliar with mountain roads, so we strongly recommend that drivers ensure they are well-rested the night before embarking on this … [Read more...]