30 years,…. Cajun’s Seafood has been doing the Crayfish Festival for 30 years. I’m starting to feel old. Anyway,… this is the 30th Annual Crayfish Festival, Saturday, 23rd of May. There will be crayfish galore of course along with a buffet. There will also be music and drinks specials all day. Go help them celebrate their 30th Crayfish Festival. 4301 Jackson Hwy in Sheffield near the O’Neil Bridge.