 The programme's divided into two schemes, one for young adults and this group for the over-30s. At our last stop, a mural etched into the wall, I chatted with 32-year-old Lulu. If you get all close up to it, it just seems like you're wearing hair, but when you then step back, you'll see, oh, there's a face there, and you start to get all the bigger picture. Have you enjoyed the walk today?