So there I was at an outdoor hot spring in the dead of winter in my birthday suit. It felt like all of Japan was there with me that evening, even though Kusatsu town has a population of only 7,500 people and about 40 people were present.
http://travel.asiaone.com/Travel/Places%2B%2526%2BInterests/Region/Asia/Story/A1Story20090723-156556.html