The lake has a surface area of 11.62 km2 and a circumference of 25 km. Its elevation at the surface is 1,269 m (4,124 ft), and the water reaches a depth of 163 m (508 ft). The Yukawa River is the principal source of water. It drains through the Kegon Falls.
Chuzenji Lake was discovered in 782 by a priest named Shōdō when his group succeeded in climbing Mt. Nantai. Considered sacred, the mountain was closed to women, horses, and cows until 1872. In the middle of the Meiji period and early Showa period, many European embassies built vacation houses around the lake. The former Italian villa has been renewed and is now open to visitors. Other sites around the lake include Futara Shrine built in 790, Chuzenji Temple, and Kegon Falls.
In spring, cherry blossoms are blooming. In summer, people can escape the heat and enjoy bird watching and hiking. In fall of course, there are the famous beautiful autumn leaves and in winter there is the Snow and Ice Festival, plus winter sports like skiing and skating.
The lake was a favourite summer haunt of Sir Ernest Satow when he was Britain's envoy in Japan from 1895 to 1900, as his diaries of that time attest. He constructed a house by the lake which was used as a villa by the British Embassy for over a century.[2]
Views of Lake Chūzenji
View from hotel Hana-an
Fall colors at the lake
Winter at the lake
Sunny view of the lake
Sources
Encyclopædia Britannica, Lake Chūzenji, accessed on September 20, 2009
The Diaries of Sir Ernest Satow, British Minister in Tokyo (1895-1900), edited by Ian Ruxton, lulu.com, 2003