View of North Ulsan near the airport. The suburb where I lived in is on the hill in the background.
The base of the mountain on which I was riding was about 12km from my home. To get to the top of the mountain, you had to climb 7km at inclines of up to 10% 
This photo was taken about half way up.
This is the sort of terrain I will have to navigate in Korea during my cycle tour.
