This series can be done from no.1 uphill to the final cache and then back to the start or the other way round. It begins in Welham Green and crosses fields and through woodland with a bit of road walking in two places. We have seen red kites, buzzards, butterflies, bees, horses and not many people along the well marked footpaths. It is a walk we do regularly in the Covid-19 lockdown days. You could make it a circle by continuing from no. 11 along the footpath past the houses, then turn to go beside Brookmans Park golf course, down the hill to Brookmans Park village centre and back along the pavement and over the railway bridge to Welham Green where you started.