This is a big place, and you may not have the stam...

This is a big place, and you may not have the stamina to take it all in first visit. There is much to explore, and much not to miss. We enjoyed just seeing part of it at a time, then lunching in the (too hot) lunch room. Tip:. If nice weather, get picnic at Tesco. Sit on the lawn, rest, refresh, recover. Superb photo opps. Don't miss a selfie with the tower bridge in the background. And Tesco snacks are always a quick, cheap option for exploring London. It's how the locals do it.