There is an express bus route called Yagi Shingu Limited Express Bus, which is 169.9 km long and has 168 stops, taking over 6 hours to complete a one-way trip.

So many stops…

Most of the passengers are taking a part of the route,but if you manage to complete the whole route in a single ride, you can get:

Certification of riding the whole route, made with 200 years old tree

And route map !

For more info, check their official website, and they don’t have English version of it (You expect tourist to ride on it?)

Don’t worry, the bus would take three brakes (about 10~20 minutes) during the whole journey!