The core and focus of this exhibition is a group of paintings George Rowlett made whilst staying with friends and collectors of his work, Richard and Ginny Williams, who divide their time between Greenwich in London and Pioppi in the Campania region of southern Italy. It was through their good offices that he obtained a government permit to paint on the neighbouring archaeological site of Paestum.This ancient city was originally Greek, a major settlement with three massive Doric temples built somewhere between 600 and 450 BC. Only a fraction of the huge site has been excavated, but it was the temples, which are in a state of remarkable preservation, that fascinated Rowlett.  (Andrew Lambirth)