One of David’s walkers on his Hampstead walk this morning (December 13) went for a jog on Hampstead Heath and then for a swim in the Men’s Swimming Pond prior to heading over to Hampstead Tube to meet up with David and go on the walk. In this podcast we hear from that walker – Chris (from Liverpool) talks about his morning swim on a chilly December 10. The podcast also ranges across the general matter of guide-walker interaction, one of the unsung delights of a London Walk.