Serra de Santa Helena Info, Norte

Aveiro is a city of some 73.559 people and a municipality in Portugal with a total area of 199.9 km² and a total population of 73,559 inhabitants, and 59,860 electors (2006). It is the second most populous city in the Centro region of Portugal after Coimbra.

Matosinhos is a Portuguese city and municipality. It is bordered to the south by the city of Porto and lies within the Greater Porto subregion.

Porto, also OPorto in English, is Portugal's second city and capital of the Norte NUTS II region. The city is located in the estuary of the Douro river in northern Portugal. The largest city in the region, Porto is considered the economic and cultural heart of the entire region.