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.
Mhlathuze River The Mhlathuze River (Afrikaans: "Mhlatuzerivier" ) is a river in South Africa. Located in KwaZulu-Natal, its catchment area has a surface area of 4,209 km2. It rises in the west in the Babanango hills at an altitude of 1,519 m and flows over 100 km eastwards to the sea forming an estuary. The deep-sea port of Richards Bay is situated at the mouth of the Mhlathuze River and all industrial development is focused within the Empangeni / Richards Bay complex.