Drummore to Dunnet

I've got a pretty busy few months coming up and am keen to have a bit of a break, come mid-October, that doesn't involve any reading, writing, running or walking!

So; I've hatched a plan to make maximum geographical use of that bus pass (all in good time, prior to reaching my next Birthday), and am going to travel - entirely by bus - from Edinburgh down to Drummore, then up to Dunnet, then back to Edinburgh ...

... the [4-day] trip will thus take me from the most Southerly part of mainland Scotland (the Mull of Galloway ) up to the most Northerly part of mainland Scotland (Dunnet Head ) - all courtesy of free  bus travel ;-)

What could possibly go wrong?!