Celebrate National Margarita Day at Mago Grill & Cantina Hey Hey, what do you say… today is National Margarita Day! We’re celebrating this February 22nd holiday at The Arboretum of South Barrington’s Mago Grill & Cantina where they’re serving up $7 Herradura February 22, 2019 Arboretum of South Barrington/Barrington Eats/Dining/Mago Grill and Cantina/News/Restaurants/Things to Do