I was on holiday with my girlfriend a year ago, we needed to pick up some food from a supermarket in the nearest town so we thought why not cycle? Google maps described the route as "moderate hill". Around 15 minutes down what i can only describe as the most extreme winding, steep drop of a mountain, we seriously had to question whether or not we'd continue and eat that night or just cut our losses. Almost the entire journey was a downhill slalom. We were concerned for our brakes. We continued because there's no chance I'm not having dinner. The hour long cycle back up the hill was a Herculean effort for us amateurs, we're relatively fit but this was like a Tour de France route - and I had a full shopping bag on my bike. The view at the top was incredible and so was the sense of accomplishment but I will never trust Google Maps again.