Hi All, I am looking at a journey from Harlow down to North Kent for a family member. They could go into London to change (or via Tottenham and tube) but I wondered whether it is possible to change at Stratford, walk through to Stratford International (a 5 min walk according to Google Maps) then carry on the journey, on a single ticket. Or would this only be possible by buying a return from Harlow to Stratford then a separate return from Stratford International (to Whitstable or Chestfield) on SouthEastern? All the journey planner websites take you into London. Thank you for any advice.