Sand is a clastic sedimentary rock that comes from the erosion of other rocks. Sand is formed from grains measuring anything between 2 and 0.063 millimetres. Sand is the classic example of a granular material: each single particle that makes up sand is called a “grain of sand”.
The paths on the banks of the wide and peacefully flowing river provide ample opportunities for relaxing walks or energetic hiking, horse-riding and cycling; if you are looking for a challenge, then canoeing or rafting may be more up your street, whilst there is no shortage of sports facilities, fitness centres and spas. Higher up, the smaller valleys are a veritable goldmine of local specialities, which you can savour in informal style at the “grottos”. On the banks of the river, silently marking the seasons and the passing of time, stand silent historic dwellings, museums, beautifully frescoed Romanesque monuments and small private chapels. On the outskirts of the town the granite quarries stand like sentinels guarding this delightful crossroads on the “People’s Highway”.