River Reykjadalsá, one of the tributaries to Laxá in Aðdaldalur, winds slowly down Reyjadalur and falls into Vestmannsvatn. From Vestmannsvatn it connects to Laxá in Aðaldal via Eyvindarlækur. Reykjadalsá is famous for dry-fly fishing, but there is also a good chance of salmon. Since 2021 Eyvindarlækur does not accompany Reykjadalsá but is sold separately. An annual fishing has been from 70 – 80 salmon and about 3000 brown trout.