The Jean Lafitte Park is spread out over southeastern Louisiana, and this event is set for Thibodaux, LA.  From the web site:

Join local Cajun accordion player Jerry Moody for a traditional Cajun music jam session at the Wetlands Acadian Cultural Center from 10:00 a.m.-noon on the first and third Saturdays of the month (no jam June 5). Moody says, “If you want your Cajun heritage to grow, then take care of it, show it off, speak it, live it, and love it.” Whether you`re Cajun or not, you`re welcome to join in as a musician or a listener.

The Wetlands Acadian Cultural Center is at 314 Saint Mary Street in Thibodaux.