In October, 2023, I took the ferry from Busan to Shimonoseki to ride around Kyushu in southern Japan. It took 15 days to ride 1200 km in a clockwise direction. I wild camped most night and prepared most of my meals. I even packed a $4 telescopic fishing rod from Daiso since I was cycling along the coast.
Completed rides on Komoot
Note : Some rides were through tunnels without a shoulder.
https://www.komoot.com/tour/1351136304?share_token=aWItiU79PiB3yeHNUqAha5oyhkEZlL1OJJXQFGNq5mL6GH1mEF&ref=wtd