Great tour.
But you seem to have missed one of the corners, what about the Scottish Borders region?!
Ah ha.
Someone is on the ball.
My 4 corners were intended to be....
Mukle Flugga, north
St. Kilda, west
Mull of Galloway, south
Peterhead, east
I did north and south.
West was a no go, due to the boats not running, but I was on Harris, so kinda west.
East is Peterhead and its up the road from where I live, so although I have been there in the past, I'll pop up at the weekend.
There are various ways of ticking off the 4 corners. Mainland, islands, inhabited islands etc.
Only specifics I read about was the Scottish end to end. Mull of Galloway to JOG.
I didn't mention it, but I also attempted to climb the nearest Munro to each corner plus Ben Nevis.
I did 3 out of 5
Matt