Irish sea
It does not flow into a sea. It is a tributary of the Rhine River.
which sea or ocean does the river yensei flow into
The river Nile flow into Mediterranean sea
it joins the river ouse
The river flows into the Irish Sea at Lytham
Rivers flow into the Caspian Sea, they do not flow out of. An example is the Volga River.
Caspian Sea
The North Sea
The Sea of Cortez.
Aral sea.
In Caspian Sea
Arabian sea