April 29, 2009 (El Cajon)—No need to venture south of the border to celebrate Cinco de Mayo! The Rancho San Diego-Jamul Chamber of Commerce is hosting a Cinco de Mayo grand opening party at Savanna Grill complete with music, mariachis, mariachis and Mexican-style food--and the public is welcome to join the fiesta. Savanna Grill is located at 3773 Willow Glen Road in El Cajon, complete with an outdoor patio overlooking a golf course.