This is part of Ellie's Wanderings circular walk around Welwyn. A lovely walk if you have a few hours to spare.
No need to worry about horses here, as maybe the name implies, as they are securely fenced in! Since they are not my favourite animals I do not set any caches where they may get near to me. Carry on along footpath towards the church and as you approach the field of horses slow down and search left. You are looking for a small container with log sheet and pencil, and room for trackable and bits and bobs if you want to leave any. Coords may be a bit off 'cos of tree cover so just look for the obvious suspect stoneaflage.