I'll try both and see which is easier. But then again, I suppose it depends on the traffic on the day with the bus, whereas you can be guaranteed that the journey will always take the same amount of time when walking. Another Chessington question because I haven't been there in such a long time....Do the queues build up as quickly as Thorpe's do? I.e.: If you arrive for 9.30am at Thorpe, you can usually get 3 or 4 walk-ons, and then the queues start to build up. Is it usually the same at Chessington, or do the queues not build up until later on in the day?