The Iroha-zaka Slopes refer to two mountain roads with a total of 48 hairpin turns. The roads are famous for their great views.
The Iroha-zaka Slopes lead to Lake Chuzenji and Kegon Falls, two major sightseeing spots in Nikko. There are 48 hairpin turns on Daiichi Iroha-zaka (the first, for going down) and Daini Iroha-zaka (the second, for going up); the ”Iroha” in the names come from a song used to memorize Japanese characters. The difference in elevation is 440 meters, making the slopes a great vantage point for viewing Nikko's nature. Fall is the most popular season, when trees gradually begin to change color from the north side, creating a totally new scene before you. Buses start from both JR Nikko Station and Tobu Nikko Station on the Tobu Line, taking approximately 40 minutes to reach the summit of the Iroha-zaka Slopes.