As Serras de Santa Justa, Pias, Castiçal, Flores, Santa Iria e Banjas constituem uma unidade paisagística de extrema significância para a Área Metropolitana do Porto, pelo extenso e diversificado conjunto de valores de ordem natural e cultural que a caracteriza, pelos serviços ecossistémicos que assegura e pela proximidade face a núcleos urbanos, vias de comunicação e circuitos turísticos. Estas serras estão classificadas como Paisagem Protegida Regional.

Here there are some rocky formations with fossils of pre-historic creatures, some of which over 480 million years old. The place belongs to the pedestrian trail "Rota dos Fósseis" (Route of the Fossils).

A park that includes the municipalities of Castelo Branco and Idanha-a-Nova, with an exceptional natural heritage. The Tagus valleys, its tributaries (Erges, Ponsul and Aravil) and the adjacent plains establish the transition between the Central Mountain Chain and the plains of the Alentejo region. The climate is typically mediterranean and has many farmlands, as well as cork oak trees and holm oaks. The Natural Park of the International Tagus is quite colourful, with a very rich collection of plants and animals.

Pedestrian walk on the bank of the river Paiva. You can start the course in Espiunca or Areinho. The route comprises a distance of 8 kilometers. At certain times of the year, it is also possible to participate in radical activities.

Comprised between the Douro river, to the north, and the Paiva river, to the south, by the town of Lamego. The hill's peak is named Montemuro, at an altitude of 1381 metres. The entire hill has a lot of relief and it is rather steep on all sides. People inhabit it up to an altitude of 1100 metres, with villages spread along the hill, usually near water courses. The springs of the Varosa river (that separates it from the Leomil hill) and the Balsemão river are located here. It is formed by granite and schist and people lived there since …

Located near the Church of Saint Marinha, this cave was inaugurated in 1896 and is a miniature replica of the cave at Massabiele, in France.

This cave was discovered by accident in 1961, during works for the exploration of a mine. Several utensils and stone artefacts have been found here. Nonetheles, the most important find was the discovery of a Neanderthal man's tooth, abouth 30 thousand years old.

A rough natural area with landscapes of great natural beauty. On the top of the hill, there is a big ston crucifix that signals the battle between the French and Portuguese-English armies, on August 17, 1808, during the first napoleonic invasion that marked the beginning of the peninsular war.

A walk by the Amiais Brook that flows to the Alviela river. Along the way, enjoy the vegetation and the rare rocks.

The Cabreira Mountain reaches 1286 metres. It belongs to the Peneda-Gerês system. It is the place to meet with nature and wild life.