The Crawfish Festival in Fountain Valley, California, will be held from May 16 to May 18, 2025, at the Fountain Valley Sports Park. The festival includes Cajun-style crawfish, live music, dance, and more festivities. Additionally, here are some other notable crawfish festival dates in 2025:

• Pensacola Crawfish Festival: April 25-27, 2025
• Michael Arnone's Crawfish Fest in Augusta, NJ: May 30 - June 1, 2025
• Fredericksburg Crawfish Festival in Texas: May 23-25, 2025
• NOLA Crawfish Festival in New Orleans, LA: April 28-30, 2025

If you were looking for a specific location's crawfish festival, please let me know! Otherwise, the primary Crawfish Festival mentioned is May 16-18, 2025 in Fountain Valley, CA.