Designed by Kato Kiyomasa, Kumamoto Castle took about seven years to build. The castle is currently under repair, but the main tower has reopened to the public.
The Hanaguri-Ide is an irrigation canal built by Kato Kiyomasa. Its ingenious structure washes down sediment and volcanic ash from the waterway bottom.
Suizenji Jojuen Garden
Suizenji Jojuen Garden, with about 73,000 square meters, was designed as a stroll garden in the Azuchi-Momoyama period. Its pond is fed by spring water from Mount Aso.
To reach Kumamoto Prefecture from Tokyo, it takes about one hour and fifty minutes by air from Haneda Airport.