Here’s a quote from this message, which was first posted to the Kumamoto JET mailing list:
“The Kumamoto UNESCO group is planning another upcoming cultural exchange event oriented towards foreigners in Kumamoto. This time, it will be a bus tour heading to some famous cultural spots in Hitoyoshi and Taragi, located in the southern part of Kumamoto Prefecture. It will be a great opportunity to get a guided tour of some famous Kumamoto sights that you would not usually be able to see.”
See the link for details. I called the prefecture and confirmed that it is open to all foreigners in Kumamoto.
Kirk
https://groups.google.com/forum/#!msg/kumamoto-jet/b38PDN54saA/uvvHkoXHxnAJ