Landerneau is a commune in the Finistère department of Brittany in north-western France. It lies at the mouth of the Elorn River which divides the Breton provinces of Cornouaille and Léon, 22 km east of Brest. From Wikipedia
The Breton town achieved 3,076 participants dressed as Smurfs, surpassing Germany's 2019 record of 2,762.