Festival of o bo xantar de Viveiro Activity · Viveiro, Mariña Occidental, Lugo Image of Viveiro, not of the place itself. The patronal festivities of Viveiro are known as the festa do bo xantar because each day revolves around a different delicacy: octopus, shellfish, sweets, meats, sardines and broth, served in the street to the sound of bagpipes and brass bands. Photo: Xosema (CC BY-SA 4.0) What to see and do in Viveiro