a 10% gradient. The road terminates at the 8th station on Mount Iwaki, a stratovolcano, at which point a chairlift is available from the 8th station to the 9th station. The Tsugaru Iwaki Skyline has been considered one of the most dangerous mountain roads in the world. This road tests the skill, and courage, of any driver. The zig-zagging road is open from Mid April to late October.
Tsugaru Iwaki Skyline is a toll road in Hirosaki which partially ascends Mount Iwaki and is notable for its steep gradient and 69 hairpin turns. It is regarded as one of the most challenging drives on Earth. The road ascends 806 metres over an average gradient of 8.66%, with some sections going up to