Very interesting video about a guy who attempts to walk across a country in a straight line during early March (I think). The country he chooses is none other than Wales. He begins near Oswestry on the English border with his final destination being 33 miles away near Dolgellau on the west coast.

Despite plenty of profanity (although this is perfectly understandable if you're forever traversing barbed wire fences and such), it's narrated well in a semi-humorous manner.

Adorned in camouflage gear, his premise is not to be seen by farmers and land owners alike. He swims and kayaks across lakes, crosses raging rivers, camps in the woods, and nearly gets mowed down by a Ford Fiesta at the very start.

Comes in four parts. I've seen the first three and so far he hasn't strayed more than 100m off course.