This is the mouth of the River Lea where it joins the Thames in East London. I intend to walk the length of it in several sections from here back to its source in the chalk hills of the Chilterns (about 42 miles/68 km in total).
 I began this undertaking by walking from my home in New Cross Gate to Greenwich. There I crossed under the Thames using the foot tunnel then skirted round the Isle of Dogs to Leamouth, also known as Bow Creek.