American Rivers: Post Mardi Gras parades, all the plastic go to river Bayou Vermilion, LA 0 7 09 Mar 2019 23:04 Playak The Bayou Vermilion winds 33 miles through Lafayette Parish. Paddlers take to the bayou as an intra-urban getaway, fishers enjoy angling for catfish along its banks, and boaters regularly buzz about on the calm waters.