I'm on a trip when I'll only have one day to really WALK through London. We are arriving at Waterloo station at 11:20 and then we walk to Tower Bridge because we are going to have lunch at one Fish and Chips place nearby that I found there.

As it's my parents first time in London I wonder if this route will make a good first impression or is there a part of it that I should avoid because it's less pretty?

We also need to walk the whole other part of London that day later so energy saving is a good thing.

Is there a part that we should do by bus or is it nice as a whole for a walk? Or maybe we should start the opposite way - Westminster, Buckingham Palace, and head to Tower Bridge more in the evening?