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Tunnocks tea cakes, drool, drool :D You can actually get them in England but not the dark chocolate covered ones they are just lush. I can't find caramel logs either, caramel wafers yes but not...

Depends what kind of biking you want to do ? I would like to do the Scottish offroad coast to coast eventually:

http://biking.skedaddle.co.uk/holiday/34/view.rails

The "best" bits of Scotland...