AQUA RESORT 清里 is a distinctive commercial facility completed in 1996, designed by the renowned Takenaka Corporation. Located in Kiyosato, Yamanashi Prefecture, this resort facility showcases thoughtful integration of hot spring amenities with contemporary architectural design. Built during the height of Japan's resort development era, it reflects the aesthetic and functional principles characteristic of 1990s leisure architecture. The structure demonstrates sophisticated spatial planning that harmonizes recreational infrastructure with the natural mountain landscape, making it a noteworthy example of resort architecture for enthusiasts studying late twentieth-century Japanese commercial design and hospitality facilities.