Milldon Art Society Annual Exhibition, Hartley Hall, Flower Lane, Mill Hill, Saturday until May 10, Monday to Friday 10am to 8pm, weekends 2pm to 6pm

The Milldon Art Society is named after the areas of Mill Hill and Hendon, and is made up of amateur and professional artists who live in and around these areas.

Members meet weekly to paint together, often outdoors, and in its 68th exhibition, the society will show 250 works in a range of media done during those meetings.

Society spokeswoman Helen Burdett says: "It's nice painting together because you inspire one another. Artists have been painting together for eons, like the Impressionists did, watching each other's work and playing off each other."

On May 10, the exhibition is open until only 4pm. Entry is free. For more information about the event, call 020 8958 7107.