Hotel Porta do Sol Conference & SPA

Set on the beachfront avenue in Caminha, where the Minho river meets the Atlantic and Spain's Galician shoreline sits less than two kilometres north, Hotel Porta do Sol anchors a four-star conference and spa property to one of northern Portugal's least-crowded stretches of coast.

Four pools — two indoor, two outdoor, plus a dedicated kids' pool — are backed by a full spa offering steam rooms, sauna, body wraps, and facial treatments. The fitness centre, game room, and kids' club make this a genuinely multi-purpose stay rather than a spa retreat aimed at adults only.

Caminha itself is a compact riverside town with a 15th-century fortified centre eight minutes on foot from the hotel. The Minho ferry to A Guarda in Spain runs year-round, making cross-border day trips straightforward without a car.