Annual Krewe of Neptune Night Mardi Gras Parade Main St, Biloxi E-mail Visit Website Dates: February 18, 2023 Time: 5:30pm Price: Free MORE PHOTOS Back About 2022 theme "The Krewe, The Myth, The Legend". Main St to Hwy 90 to Lameuse St to Dr Martin Luther King Jr Blvd to Howard Ave to Caillavet St. ending at Bayview Ave. Map