We're planning to hop onto the double decker buses in London as a way of easy and efficient site seeing. We're also planning to take the tube back and forth from Euston/St. Pancras to Paddington station. Should we be buying a certain bus/train pass? Or should we be paying as we go?
What is the best way to get from Euston station to Paddington station? From Paddington station to St. Pancras station?