This fifty-minute virtual walk, hosted online via Zoom video conferencing, explores the fascinating Thames Estuary, a place London has always relied on but which remains a mystery to many Londoners. Starting in East London and following the river to the sea. Your guide Rob Smith will tell you some of the stories from the history of the area, and tell you about places to visit in real life: forts built to defend London from invasion, container ports that bring goods to our shops today, hidden places for wildlife, genteel Georgian towns that have grown up a bit today, Saxon settlements and World War Two sea forts.