If you can manage a London bus, you can manage any IMO. I remember being in London one summer when the World Cup was on and the buses were swamped with football fans. They actually had to remove some of them because there wasn't enough standing room. Trains in Scotland are a disaster too. When I was over last year the trains were packed with so many people that we had to sit on the floor. I thought pre-booking a ticket guaranteed you a seat, I was wrong. 