Andrew met us at Southwark station and introduced everyone who was on the tour. He was good with the children and pointed out all the sights explaining everything in a clear manner involving the children wherever possible. It wasn't an easy task as 2 hours is a long time for young children and they started to lose concentration towards the end. We stopped at several places and I think the highlight was the observation platform at the Tate Modern which everyone enjoyed. At the end of the tour Andrew showed us where to get the train to our next stop. He was a perfect gentleman throughout and the tour was very interesting.We would definitely recommend him as a tour guide.