yes, yes, yes, yes, yes! Please do, that would be brilliant and exactly what we want.
Lynne McNicoll (step mother of Andrew McNicoll and a big supporter of POP) will be on foot this year because she broke her wrist in the ice. I think she's looking for people to join her.
The only thing I would say is that if folk are coming on foot, they should bring something (placard, banner, t-shirt) that identifies them as part of POP. We had a few families who came on foot last time it did look as if they had just wandered in by mistake (at least that was the comments some people made on some of the photos).