Follow the link and sign up! I did this parade last year and had a blast. There is a wonderful festival at Vermilionville before the parade, and a fun party at the take-out point, so plan to spend more than the two hours the parade paddle takes if you can.
Festival is $5.00 per person. It's a fundraiser for the Bayou Vermilion District.
There are kayaks and canoes available for rent, cheap, on a first-come basis; or bring your own. Details for launch spots and shuttles are on the website. Festival starts at 10:00am. Music and party starts at 5pm near take-out, and goes until 9pm.