Contains basic information, descriptions, and images of developed, natural hot springs in Nagano.

Offers an overview of the history and etiquette of Japanese onsens, or hot springs, along with a searchable database.

Find a photo, a history of and general statistics about several hot springs across Japan. Access an outline of the minerals in a hot spring.

Peruse this extensive directory of public hot springs throughout Japan, including photos and a review, operating hours and prices for each.

Find a region-by-region guide to hot spring resorts in Japan. Learn onsen terminology and the proper manner of bathing in one.

Enjoy photos of bathers and hot springs throughout Japan as captured by a tourist in the country.