Sumiyosiya Ryokan is a four-star retreat in Kusatsu, Japan, blending traditional ryokan charm with modern comforts. The address is Toyosato 8713, Nozawa Onsen, and the property sits about 22.9mi from the city center, offering a quiet base for exploring the area.

Seasonal and practical amenities shine: skiing, free private parking and on-site parking, adults-only atmosphere, free wifi, and free air conditioning. The hot spring bath is free to enjoy, while non-smoking rooms, a bidet, free toiletries, and a bathtub add comfort. Additional options include massage (extra charges) and kids' meals (extra charges).

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Sumiyosiya Ryokan invites travelers to a four-star retreat where traditional ryokan charm meets contemporary comfort in Kusatsu. The setting carries an adults-only atmosphere, offering a peaceful respite after mountain adventures. In-season skiers will find the area inviting, and complimentary parking—both private and on-site—along with reliable Wi-Fi and cooling comfort, helps keep plans easy. A free hot spring bath adds a soothing touch to winding down evenings.

A diverse lineup of Japanese-style rooms awaits, including options such as Japanese Style, Twin; Superior Japanese Style with Garden View; Annex Superior Japanese Style; Annex Japanese Style Corner; and a Standard Room. Room sizes and layouts vary, and some options feature shared bathrooms for a communal twist.

For practical planning, only cash is accepted. Extras include massage services and kids’ meals, both available at additional charge. Enjoyable options and a traditional-meets-modern vibe make this retreat a playful, memorable base for exploring the area.