Lake Ryusen (Lake Lucerne). The lake's zigzag shape and surrounding mountains constitute a typical "lake scenery" scenic spot, attracting a large number of tourists to visit. Ludwig Rellstab, a music critic, once described the hazy atmosphere of the first movement of Beethoven's "Piano Sonata 14" as the moonlight of Lake Lucerne, which gave the title "moonlight" to the song, although it was not Beethoven's intention. The story of Beethoven playing the piano to the blind girl in "Moonlight Song" is fictional. )