What to do on a rainy day in Hakone?
Go to the Pola Museum of Art where the building itself is a masterpiece!
It is a very peaceful place. The museum has a great collection of European art. It has many of the classics of the art world, and has a revolving series of exhibits featuring famous artists from Chagall to Picasso. If you like European art, enjoy the many works gathered here.
1285 Kozukayama, Sengokuhara,
Ignore the rain!
Do all the sightseeing you would normally do. Usually when it rains in Japan it is not too cold.
Read I am Hakone for what to see and do in Hakone!