Fuji-Hakone-Izu National Park (富士箱根伊豆国立公園) straddles Yamanashi, Shizuoka, Kanagawa and Tokyo prefectures.
The Fuji-Hakone-Izu National Park is a sprawling 1200 sq.km. zone that covers not only Mount Fuji itself, but also the Fuji Five Lakes, Hakone, parts of the Izu Peninsula and all of the Izu Islands, stretching several hundred kilometers south from the Japanese mainland.
While the park is dominated by Mount Fuji, which is (in good weather) visible from all parts except the southernmost islands, the local landscape is in entirety volcanic. In particular, a number of the volcanoes on the Izu Islands are still active.
Flora and fauna
Routes vary widely depending on where exactly you're going, but it's safe to say that the most common starting point is Tokyo. Cities near the park include Odawara, Fuji, and Numazu.
The volcanic activity of the park means that there are hot springs galore. Those in Hakone are the easiest accessed from Tokyo, but the Izu Peninsula is also a popular weekend getaway.
- Fuji Lake Hotel, 1, Funatsu, Fuji-kawaguchiko-machi, Minamitsuru-gun, Yamanashi 401-0301, Japan (About 10 minutes walk from Kawaguchiko Station.), ☎ 0555-72-2209, . checkin: 3:00pm; checkout: 10:00am. Guests can enjoy the view of Mt. Fuji from both room and bathroom. The chartered barrier-free open-air baths are also popular.
- Kozantei Ubuya, 10 Asakawa, Fujikawaguchiko-machi, Minamitsuru-gun, Yamanashi, Japan (About 30 minutes walk from Kawaguchiko Station.), ☎ 0555-72-1145, . checkin: 2:00pm; checkout: 11:00am. A high class Japanese-style inn with views of Mt.Fuji and Kawaguchiko from both the bedrooms and the large bathrooms. The bathrooms also feature an open-air bath.
- Kasuitei-Ooya, 4025 Funatsu, Fujikawaguchiko-machi, Minamitsuru-gun, Yamanashi, Japan (About 10 minutes walk from Kawaguchiko Station.), ☎ 0555-72-1212, . checkin: 3:00pm; checkout: 10:00am. Kasuitei Ooya is contemporary Japanese style inn standing just on the shore of Lake Kawaguchi. It has renovated rooms with private open-air bath and observation bathroom. Guests can enjoy more hot springs than ever before.
WikiPedia:Fuji-Hakone-Izu National Park