The Lac de Nino lake is situated between Castel di Vergio hotel and Manganu refuge. It is the source of the Tavignano river, situated between Castel di Vergio hotel and Manganu refuge, it has a surface area of 6.5 ha.
In the summer, it is a really relaxing spot, it is surrounded by spongy green turf, there are runnels of water and small wells known as the ‘pozzi.’ The GR skirts around its shores, most walkers make a welcome break to admire the scenery, take pictures or enjoy a picnic. There are often grazing ponies enjoying the lush grass that add to the beauty of the place.