Count Me In! Count Me In! I am pleased to be a Friend of the U.S. Oyster Festival in St. Mary’s County, MD. Donate Online Opens in a new window Or Donate By Mail [Form id=”10″] Please make checks out to: The Rotary Foundation of Lexington Park and send them to: US Oyster Festival in St. Mary’s County, MD P.O. Box 766, California, Maryland 20619