One of the most spectacular places to dive, is in the crystal clear waters of the Verzasca Valley, that offers different swimming opportunities. The best-known river basins are located in Lavertezzo and in Brione Verzasca. The most famous for underwater activities are the Misura river basin, the Posse river basin and the Salti river basin. The river, with its emerald and crystal clear waters, however, can hide hazards. Therefore, pay attention to the warning notices posted locally.