Ryokojin Sanso in Kirishima Onsen

What Ryokojin Sanso is like

Ryokojin Sanso stands in the forest on the hillside above Maruo Onsen. We chose it for its quiet setting, views across the valley towards Sakurajima, and outdoor baths hidden among the trees. It feels pleasantly remote and worked well as a base for days in the Kirishima Geopark.

Rooms overlooking Sakurajima

The rooms are comfortable rather than sleek — warm, well-kept, and showing their age in a way that feels appropriate for a mountain ryokan. All rooms face the valley, with views stretching across to Sakurajima in the distance. We stayed in a twin room where large glass doors open onto a terrace, which we made good use of after long days on the trails. Deer appeared regularly in the garden below, usually in the late afternoon.

Private outdoor baths at Ryokojin Sanso

The ryokan's private outdoor baths are scattered through the forest and garden around the building. Staff hand over a key and point you towards the path, so getting there means stepping outside in slippers and following the lights through the trees. We particularly liked the Hinoki and Akamatsu baths.

The public indoor bath had the best view of all, directly towards Sakurajima and particularly good at sunset. The gender-separated public baths in the main building rotate between men and women each day.

Kaiseki dinner and breakfast at Ryokojin Sanso

We stayed three nights. On the first evening we were seated beside the glass panel overlooking Sakurajima — good timing. Dinner and breakfast are both kaiseki: multi-course, well-prepared, and varied across nights.

Ryokojin Sanso as a base for Kirishima

The Kirishima Onsen area is a cluster of small onsen districts spread across the volcanic slopes of the Kirishima mountains, and a practical base for hiking Takachihonomine and Karakunidake. The main village is Maruo Onsen — a handful of older hotels, a Lawson, and a tourist office with a restaurant. Along the main road, vents in the ground release sulphurous steam with some persistence. There is not much to do beyond a walk to the local waterfall or a short hike nearby — the point is to spend your days in the Geopark and come back to a good onsen in the evening.