"One of the unexpected highlights of the trip was Kanmangafuchi Abyss. The ryokan is the closest tourist accommodation to the Abyss. Since it was too ..." tripadvisor.com
"in a quiet area near the Kanmangafuchi Abyss; includes a hot spring bath and internet access Japanese-style rooms ¥6500 for one person, ¥12400 for two, ..." wikitravel.org