The "Rezé – Pornic – Rezé" is a 155 km cycling event offering a discovery tour through the heart of the Pays de Retz. Since 2022, the ACDC Amicale Cycliste du Coin organizes this event, which starts at 5 PM, meaning a significant portion of the ride will take place at night. The event follows a 'brevet' format, with a maximum time to complete the 155 km and mandatory check-ins at various points. Upon finishing, participants who have completed their check-in card receive a personalized diploma with their time. The 2024 route has been largely renewed with new surprises and discoveries. A light refreshment with a hot drink is provided at the halfway point in Pornic, along with homemade soup from ACDC to refuel.