The campsite http://www.pontedas3entradas.com/ has a lot of shady places, near the river Alva. You can also rent a bungalow or apartment. In the summertime there are also tents-for-rent. Near to the Serra da Estrela and Serra do Açor (Piodão). A good place for hiking, biking, relaxing, swimming, (motor)touring. There's a nice bar with a big terrace and a swimmingpool.