The municipality of Arouca owns a geological heritage of remarkable importance, so part of its territory was recognised as a Geopark by the European Network and the UNESCO Global Geoparks Network in 2009.
Highlights of the Arouca Geopark are the Castanheira Nodular Granite (Pedras Parideiras), the Canelas Giant Trilobites and the Vale do Paiva Ichnofossils. But you can find at least 41 unique geosites. This 328km2 open-air geological museum is protected by the surrounding mountains and crossed by several rivers, being a wonderful destiny for everyone who wants to enjoy canyoning, canoeing, kayaking and mountaineering. The River Paiva rapids are a great example: here you will find some of the best locations in Portugal for rafting and kayak-rafting.