A museum where you can enjoy various "sounds" and the "nature" of mt. rokko. in the german-style western-style building "forest sound hall," you can experience various sounds through the display and performance of automatic musical instruments such as large organs and music boxes, and the "music box assembly experience." in the natural garden "siki garden - sound walkway," you can enjoy seasonal plants and scenery, exhibits of sounds that you can touch, tree houses, hammocks, and the terrace seats of the forest café.