At Grímstunguheiði (heath) anglers can find very varied and fun fishing opportunities. The total length of the river basin in the heath is just over 200 km. The upper part of Vatnsdalsá is the largest body of water and the largest fish are often caught there. Vatnsdalsá can be fished above the waterfall series Rjúkandi, Kerafoss and Skínanda. In the tributaries that form Vatnsdalsá it is also possible to enjoy good fishing, especially in Strangakvísl. Fish can also be found in the streams Þjófakvísl, Miðkvísl and Kolkukvísl. The lakes Refkelsvatn, Galtavatn and Þórarinsvatn also often provide good fishing. The fish in the lakes are healthy, with an average weight of 2.5-3 pounds. There are many other lakes in the heath and are fish in most of them.