Taketomi
Taketomi Island is a small island just off Ishigaki Island in the chain of islands now called Okinawa. It is most well known for the water buffalo-drawn carts (click here) that take tourist around the small village which is a preservation district.
Being a mask-maker myself, though admittedly somewhat lapsed, I was intrigued by the masks in the local folklore museum that was housed in the villages small buddhist temple.