The Big Half 2024 The Big Half is a uniquely local celebration of the wonderful cultural diversity of the city of London, run through four of London's boroughs - Southwark, Lewisham, Tower Hamlets and Greenwich. Join Team LGT and take on this challenge to help us raise funds to make a difference to patients and staff at the Lewisham and Greenwich NHS Trust. Registration for The BIG Half 2024 has now closed. To register your interest for the Big Half 2025 please email our charity team [email protected]