Getting There & Away
Two buses daily run to/from Asahikawa (¥4710, five hours), via Sōunkyō Onsen (¥3350, four hours) in Daisetsuzan National Park. From April to November there are three to six buses daily to/from Kushiro (¥2700, two hours), via Kushiro Airport (¥2150, one hour).
From mid-July through mid-October, two buses daily run to/from Mashū Station (for Kawayu Onsen; one hour, ¥1500), with a stop at Mashū-ko Viewpoint 1.
If you're driving, Akanko Onsen is on Rte 240, which (of course!) has been renamed Marimo Hwy (まりも国道).