Sunday 19 September · Hackney Marshes Pavilion / We're thrilled to be hosting a special event to celebrate the arrival of Tom Chivers' new book, LONDON CLAY: JOURNEYS IN THE DEEP CITY! Spend the afternoon of Sunday 19 September strolling along the River Lea with us as Tom leads a tour exploring the deep history of one of London's most iconic waterways. Tom will be joined by poet Siddhartha Bose for what promises to be an unforgettable insight into the river's historic depths.