Amtrak unveiled the opening date during a multi-state press conference Tuesday. The Mardi Gras service will include stops in Bay St. Louis, Gulfport, Biloxi and Pascagoula, with final destinations in New Orleans and Mobile. Amtrak also showed the train cabins for guests, which include free wi-fi, refreshments for purchase and no middle seat.

A new Amtrak line will start running in Mississippi, Louisiana and Alabama this summer. What to know about when, how to get tickets, what it costs

Supporters say the line will boost tourism in the three states it connects, especially for the Mississippi cities along the coast.