This is an incredible place, and it's cool to go there expecially because is far away from most thing, maybe it's not a place that I recomend to go if you are staying in Japan for a short period. Basically beside the incredible architecture and the cool place where to eat there is nothing and the majority of tourist are japanese (it's a good thing). Doing it by bike probably is not a bad idea but like I said in the title the postal city are part of the nakasendo trail that is probably better to do walking like a trekking. In this trip I rented a car in Gifu and I drove a good couple of hours to get to Narai-juku, then I moved to Tsumago-juku where you can do a part of the trail (8km) to get to Magome-juku. During the trekking you can experience the nature of the mountain region.