This is a narrow tarmac road that follows the rough terrain, sometimes following the top of the hills and with some sections with a lot of slope... and often without safety rails. The landscape is impressive especially when we are on top of the hills and look down... It's Municipal Road 567 - M567 - and it's called Portal do Inferno (Hell's Gate)...maybe because it seems to us that the Devil is at the bottom! ... and it can be, if we're not very careful...