4 Best Sights in Aveiro, Coimbra and Central Portugal

This 45-km (28-mile) delta of the Rio Vouga was formed in 1575, when a violent storm caused shifting sand to block the river's flow into the ocean. Over the next two centuries, as more and more sand piled up, the town's prosperity and population tumbled, recovering only when a canal breached the dunes in 1808. Today the lagoon's narrow waterways are dotted with tiny islands. Salt marshes and pine forests border the area, and the ocean side is lined with sandy beaches. In this tranquil setting, colorful moliceiro boats glide gracefully along, their owners often harvesting seaweed. The best way to see the lagoon is in one of the boats that depart from the canal across from the tourist office. A number of operators line the waterfront, most charging around €13 for a 45-minute tour.

At Aveiro's northeast edge, the city's train station is an attraction in itself: the exterior of the whitewashed building displays a huge collection of 1916 azulejo panels depicting regional traditions and customs.

Facing Praça da República, in a small square a little way from the old town, you'll find the 18th-century Igreja da Misericórdia and its imposing baroque portal. The walls of the otherwise sober interior are resplendent with blue-and-white azulejos. Look out for the gilded altarpiece and finely carved woodwork, as well as the quiet courtyard next door, often missed by passers-by.

Aveiro's opulent, palm-filled city park is the biggest green space in the city, attracting everybody from joggers and strolling couples to kids attracted by the playground and skate park. An open air kiosk, Café Macaca, is a lovely spot for a cold drink and a snack under the shade of the trees.