Deai Bridge and Todoro Bridge are two separate stone arch bridges going over the Okudake River; Todoro Bridge boasts of having the largest arch in Japan while Deai Bridge is the second largest arch respectively. The greenery of the spring season as well as the autumn foliage covering the stone walls of each bridge is a sight to behold.
Image (c) http://www.bungo-ohno.com/
From Oita: 1 hour and 50 minutes by car
From Bungo-kiyokawa Station: 30 minutes by car