Where: Downtown Baton Rouge ending at the Raising Cane’s River Center. When: Feb. 4 from 6:30 p.m. until 9 p.m. Details: The Krewe of Orion’s 25th annual Mardi Gras parade theme is “Orion’s Silver Anniversary.” Marching bands, dance groups, and marching units (all of 20 members or more) will be among the great sights and sounds at this wonderful family-oriented parade.