Festival of a Merluza do Pincho de Celeiro Activity · Viveiro, Mariña Occidental, Lugo Image of Viveiro, not of the place itself. Since the end of the 1990s, every July the old fish market of the port of Celeiro becomes a collective dining room for tasting line-caught hake, served in a pie, as caldeirada, in green sauce or Galician style. Photo: Lmbuga (CC BY-SA 4.0) What to see and do in Viveiro