San Luis Obispo is staging a week-long festival of plein air painters. Most painters of from California, but others painters are from Arizona and New Mexico. A popular festival, this events includes quick draws, paint-outs, exhibitions, private viewings, poetry and an exclusive lecture by the director of the Irvine Museum, Jean Stern. Check out their calendar of events by visiting the following link. This is a fabulous organization that really involves the community and plans ahead. I just received their newsletter and they have listed many interesting painting sites for their members.