Happy 21st! Yay 1980 babies
Have a great time in NOLA. Although, being 21 down here means nothing. The only place that is restrictive about entry is Pat O'Brien's. If/when you get a hurricane, take it SLOWLY. They're damn strong.
Also fun to try is Tropical Isle's Hand Grenade. Another drink that will "sneak up on you"
If you get a chance to explore the city any, check out City Park, Audobon Park, the Garden District. Or come over to the Northshore of Lake Ponchartrain (where I live) and take a swamp tour. Note, that unlike the portrayal in the waterboy, all Louisianians don't live on the bayou/swamp and drive fanboats.
Have a great time!