The volcanically active Fuji-Hakone-Izu National Park, centered around Lake Ashinoko, is a popular tourist attraction well known for its onsen hot springs and its views of Mount Fuji.
The Great Boiling Valley 大涌谷 Ōwakudani is a volcanic hot spot full of sulphurous springs. Owakudani can be reached by cablecar from Sounzan and the lake.
Hakone Jinja Shrine
nestled on the south shore of the lake, close to Moto-Hakone, is a picturesque Shinto shrine with torii gates in water.Lake Ashi
Ashinoko offers beautiful views of Mount Fuji but only on a clear day. As many tourists have found out, a visit to Lake Ashinoko does not guarantee a view of the mountain. The lake is crisscrossed by cartoonishly decorated "pirate ships".Hakone Open Air Museum
(http://www.hakone-oam.or....) displays a wide variety of sculptures and artwork within a beautiful parkland setting. Includes a Picasso exhibition paintings and pottery.