Kirk here. If you live in the Kumamoto City area, I highly recommend walking in the Tatsutayama area – particularly on sunny autumn days like today.
Location via a Google map: https://www.google.com/maps/place/Tatsudayama/@32.824716,130.7316399,14z/data=!4m6!3m5!1s0x3540f140c219c885:0x61c82f702414503!8m2!3d32.8269205!4d130.7322642!16s%2Fg%2F1224zml2?entry=ttu&g_ep=EgoyMDI1MTEyMy4xIKXMDSoASAFQAw%3D%3D