Buses operating between Kumamoto and Nobeoka, stop near Takamori Station ("Takamori Chuo" bus stop) at the southern base of Mount Aso and Takachiho Bus Center along the way. The one way trip between Takamori and Takachiho takes 80 minutes and costs 1500 yen one way. There is one bus per day, operated by Kyushu Sanko Bus and Miyazaki Kotsu (Miyakoh). Online reservations are possible via Willer.
Most of Takachiho's attractions are scattered in and around the town center and can be accessed on foot by good walkers (the gorge is about a 30-40 minute walk from the bus center). The exception is Amano Iwato Shrine, which stands ten kilometers outside of the town center and is accessible by infrequent bus or taxi.
The local bus network is centered at Takachiho Bus Center which is also served by the buses from Nobeoka and the highway buses to/from Kumamoto and Fukuoka.
Because public transportation is rather infrequent and inconvenient, rental cars are a convenient means to get around town. Rental outlets can be found in nearby Nobeoka City, around Mount Aso and at Kumamoto and Miyazaki Airports. Alternatively, electric bicycles are available for rent near the Takachiho Bus Center for 500 yen per hour.