William. The Aso Volcano Archeology Museum has announced it will host something called the Aso Night Museum this weekend and a few weekends following. The link does not provide the time, but I guess it's at night. It looks fun - if you have a car. Scroll down on the link for wonderful photos.
阿蘇火山博物館 × ネイキッド 阿蘇ナイトミュージアム
阿蘇火山博物館とネイキッドがコラボレーション。夜の阿蘇火山博物館と阿蘇の大自然の中をめぐるナイトウォーク。