Aso, Japan. Aso is a town located in Kumamoto Prefecture, Japan, famous for its volcanic landscapes and natural beauty. Explore Aso-Kuju National Park, home to Mount Aso, one of the world's largest volcanic calderas. Take a drive along the Aso Panoramic Road to enjoy breathtaking views of the surrounding mountains and lush greenery. Visit the Aso Shrine, a historic Shinto shrine nestled in the foothills of Mount Aso. Explore the scenic Aso Milk Ranch and try local dairy products. Aso is a destination where you can witness the power of nature and immerse yourself in Japanese countryside charm.