Overlooking the Hayakawa River, the completely non-smoking Quatre Saisons features a hot-spring bath and massage services. The spacious rooms boast river views and a private bathroom with a yukata robe. Complimentary breakfast is served. Each air-conditioned room at Tonosawa Quatre Saisons comes with an LCD TV and a seating area. You can make green tea, relax in the tub or try on the slippers. Toiletries are provided. The hotel is about a 6-minute walk from Tonosawa Train Station. Odawara Castle is 6.5 km away, while Lake Ahino is a 30-minute drive. On-site parking is free. Free Wi-Fi and a free-use internet terminal are provided at the lobby, and guests can play Shogi (Japanese chess) or Go. The public baths at nearby affiliated hotel Ichinoyu Ryokan can be used for free. Dinner is available for an extra fee at the dining room, which has views of the Hayakawa River and surrounding forest. A reservation must be made 2 days in advance.