We just had a drive around the Marine Drive and about a quarter of a mile from the start of the two way section an idiot was driving a small white van towards me!
It's fairly common at this time of the year. Roughly five vehicles a day go the wrong way round the drive. A lot has to do with overgrown signage, fading road markings and folks who enter the drive from the Orme car parks at the half way point, and turn right instead of left. The worst case I saw, however, was a coach - a full 53 seater - that had simply 'got lost' according to the driver. Cyclists are by far and away the biggest risk, though, as they drive down the drive the wrong way, even though they know it's the wrong way.