Everyone in the Lake District makes this terrifying drive eventually, and the panoramic views of the fells make it worth the 30% grade on the roads and the hairpin switchbacks. Oh, and the road is only one car wide so you have to pull over on occasion to let cars pass in the opposite direction. The road is only driveable in summer, and only cars (no caravans or busses) are allowed. Cyclists are as well, but they look so miserable I can’t imagine doing it. A few walking trails lead off of the pass, and there are areas where you can park and admire the scenery. Ruins of a Roman fortress can be found and wandered through near the top of the pass. They are over 2000 years old. On a clear day the views are spectacular. Google maps will take you there if you put Hardknott Pass in as a destination, but be prepared to use road signs or maps to navigate home if you lose signal.
What’s the most beautiful or terrifying drive you’ve ever taken?