#20 Ankle deep in the Lee/a valley

Does anybody know how to spell Lee/a valley? I think the river is confused. We explored some new trails in the north end of the Lea valley park (we have been on the Lea valley trail with Pemi on adventure number 10 and 11). We found ourselves on the Greenwich meridian trail which follows the entire English segment of the meridian! It also involved wading through a flooded underpass with our shoes off - wonder what Pemi thought of that up there in his backpack. He loved the egg and carrot salad picnic as always! We did cut the walk short because we had plans to see some friends back at home, but it was amazing to explore some new muddy paths.