Both the mouth of the Atran and which sea flow into Kattegat?
Ätran (river) Ätran is a Swedish river. The river is about 240 km long, and has its source in Gullered, Västergötland, at a height of 332 m above sea level. The river has its mouth in Falkenberg, Halland, where the river enters Kattegat.
Snigsfjorden Snigsfjorden or Sniksfjorden is a fjord in Lyngdal municipality in Vest-Agder county, Norway. The 3 km long fjord begins at the mouth of the river Audna by the small village of Snig, about 4 km south of the municipal centre of Vigeland. The fjord heads south to the North Sea. The east side of the fjord is the mainland of Norway and the west side of the fjord is bounded by the island of Unnerøy. The two small islets of Fløyholmen and Tolleknivane are located at the mouth of the fjord. The small Navarsundet strait runs between Unnerøy island and the mainland on the west side of the fjord, connecting it to the nearby Syrdalsfjorden.