The Fête de la mer in Trébeurden celebrates maritime culture and activities on 15 August 2026 at the Castel parking lot. The day begins with a morning mass and continues with booths from local exhibitors offering a variety of food and drink. Musical performances by various groups will enhance the festive atmosphere throughout the day. For sea enthusiasts, the event features sea outings and scientific mini-lectures focusing on marine themes. This celebration is an important highlight in the local cultural calendar, perfect for families and all who wish to honor the sea.