Meet 10.30 Welwyn North Station ticket office (10.00 Thameslink Cambridge North train from Finsbury Park mainline station or at 10.13 from Potters Bar Station).
About 7 to 8 mile circular walk with attractive views, woods, village greens and river valley scenes. Hilly in places. No practical shorter option. Lunch stop at Tewin. Bring lunch or pub food/community shop tea room. Leader: Mick Spinks