Template Ocean City Chamber of Commerce ยป Template GPP Holdings DBA Grotto Pizza Share: Restaurants GPP Holdings DBA Grotto Pizza Visit Website 12407 Coastal Highway Ocean City, MD 21842 (410) 250-1234 About About Grotto Pizza - a legend in Delaware and beyond for over a half century! Grotto's confinutes to adhere to its core values of excellent food, friendly guest service and community service. Back to Top