Kanzanji Ropeway and Lake Hamana Music Box Museum (かんざんじロープウェイ・浜名湖オルゴールミュージアム) かんざんじロープウェイ
According to the operator, the only ropeway in Japan over a lake: 4 minutes to the music box museum.
The ropeway links the shore of Lake Hamana, at Kanzanji, to the summit of Mount Ōkusa, where the Lake Hamana Music Box Museum stands. You visit the two with a single ticket: the museum can be reached only by ropeway, and no source from the operator mentions an alternative footpath.
Shizuoka
Hamanako Pal Pal, Kanzanji Onsen, Kanzanji-cho