Here's an anouncement that I received in an e-mail from the Kumamoto City International Foundation*
■Nabega-taki(waterfall) lighting-up
Nabega-taki is a beautiful waterfall which you can go behind.
Time period: Sat., 2nd. ~ Wed., 6th. May.
17:00~21:00
Place: Nabega-Taki (Oguni Town)
Cost: 200yen
Access: JR Aso Station → Michino-eki Oguni Yuu Statio (about 1 hour by bus)
*It takes about 15 minutes by taxi
For more information: Oguni Town Office Information Division
(TEL: 0967-46-2113) *Japanese language only
The picture you see is from