Welcome to Asahidake Onsen
Asahidake Onsen (旭岳温泉) sits at 1100m, at the base of Asahi-dake, Hokkaidō's tallest peak. It's the easiest access point into the park, with regular buses from Asahikawa. There are plenty of hiking options in summer plus downhill and cross-country skiing in winter. All of this can be followed by a soak in the healing onsen found in the town's inns; most are open for day use to the general public for a fee (¥800 up to ¥2160).
Be prepared: there are no ATMs, shops or restaurants at Asahidake Onsen. The nearest amenities are a 30-minute drive away in Higashikawa.