Watch the sunlight bouncing off the water as it flows over Sadali Waterfall. Look out for any rainbows that form in the mist.
You'll find this cascade of water in Sadali. Once you've explored all you can at Sadali Waterfall, check out nearby Cascata Sa Stiddiosa, Ecomuseum of Alto Flumendosa, and Su Stampu de su Turrunu.