Foz is a town and municipality in A Mariña country in the Galician province of Lugo. It has been historically linked to the Ancient Province of Mondoñedo and also linked to the arrival of Briton immigrants during the Dark Ages fleeing by sea from the British Isles. It has 9800 inhabitants. It borders the coastal municipalities of Burela and Barreiros, and the inland municipalities of Lourenzá, Mondoñedo, O Valadouro, Alfoz, and Cervo.
Foz is a coastal town on the shores of the Cantabrian Sea at the mouth of the river Masma, which forms the Foz estuary, with an approximate area of 100 km².
Wikipedia https://en.wikipedia.org/wiki/Foz
Coordinates 43°34'7.917" N -7°15'18.147" E