The confluence of the Vltava and Elbe rivers is an important landmark of the town of Mělník. The most beautiful view of it is from the terrace at the Mělník Chateau.
Not only the Vltava, but also the Vltava canal flow into the Elbe. Because their confluence is better visible than the confluence of the Elbe and the Vltava, visitors often consider the canal to be the Vltava.
Looking from above we can see that the Vltava flows into the Elbe first and then the canal is connected which is the narrowest. The Vltava is longer and has more water in the confluence, yet the river is named the Elbe, contrary to the convention. It then flows through Germany and runs into the North Sea.