Izumigo Hotel Altia Toba

Five floors above the Arashima shoreline on Toba's eastern peninsula, Izumigo Hotel Altia Toba is a ryokan where balcony rooms face Ago Bay rather than the inland hills — the sea view is the amenity that matters most here.

Hot spring baths run in three formats: an open-air rotenburo, a public communal bath, and in-room deep soaking tubs. The outdoor pool operates seasonally above the bay, and a sauna adjoins the bathing floor. The on-site restaurant serves kaiseki-style meals; kids' meals are available, making this a practical family choice on the Shima coast.

Toba city center and the Mikimoto Pearl Island — where cultured pearl diving demonstrations still run — lie roughly ten minutes by the hotel's shuttle. Check-in from 15:00; check-out by 11:00.