‘Terra Ludi’ by Simon & Tom Bloor is a public art commission for St James’s residential mixed-use development Riverlight. The artwork explores informal play through the use of unexpected materials. Two elements make up the artwork, the first is a geometric rocky outcrop and tree trunk sculpture, referencing natural materials but created in concrete and bronze. The second element is a network of concrete stepping-stones, scattered along the Thames Riverside and Nine Elms Lane, designed to encourage an exploration of the public realm.