Located in the corner of the Aichi Kogen National Park is a valley created by the Yahagi River Rio Tributary. When you think about famous spots to check out the leaves in the fall, Kourankei is first in everyone's mind. You'll find 4,000 trees consisting of 11 different types of Japanese maples that paint the landscape in a gorgeous yellow and crimson.
The best time to visit Kourankei is Novmeber. The mountainside is lit up until 9PM each night, but even in the afternoon it's a gorgeous place to be and you can get a lovely view of Kourankei's symbol—the Taigetsukyou [Samurai Moon Bridge].