River Island – Marble Arch, London – Opening Hours & Store Details River Island is set at 473 Oxford Street, 1.24 miles west from the centre of London, in Mayfair (not far from Marble Arch Station). The fashion store is an important addition to the districts of Cumberland Gate, Victoria Gate, Clarendon Gate, Mayfair, Albion Gate, Fitzrovia, Albert Gate and Marylebone. On this page you’ll find all the up-to-date information about River Island Marble Arch, London, including the working times, location details, direct telephone, and other info.