Informal guided tours of a selection of art and photography galleries located in W1 and WC2. Organised by The Rational Gallery, tours last two hours. They take in such venues as White Cube Masons Yard, Haunch of Venison, Riflemaker and Sadie Coles HQ and they're flexible enough to ensure that groups can spend as much time as they want at individual galleries. Ten people max per group; early booking advised.