Many things to consider that only you can answer.
Are you traveling by train and packing light?
Are you planing on going to events you need the reach?
I would imagine visiting Scotland would have been a similar trip, in regard to the things you like to photograph, did you find yourself needing the longer lens.
When I went to London, I rented a car and traveled all over from Dover to the west coast.
I took a tripod, my general purpose 24-70 II and 70-200mm. I only used the 70-200 once and could have left it at home. With a rented car weight was not an issue.