0 Euro - Le Grau-du-Roi - Seaquarium hippocampe

The zero-euro souvenir note program, formalized under the UECR (Union Européenne pour la Collection et la Recherche), has grown into a genuine secondary market since its commercial launch around 2015 — Oberthur Fiduciaire prints them to the same security specifications as circulating currency, including intaglio printing and embedded security threads, which is precisely what drives collector demand. Le Grau-du-Roi's Seaquarium, on the Camargue coast, is one of the larger marine attractions in southern France and a recurring subject in the regional souvenir note issues.