This is the park. There are many ducks in the river. The river is named (“named” works but “is called” sounds better) Guadarrama. This is river goes to Madrid. Next to it there are many trees.

This is the park. There are many ducks in the river. The river's name is Guadarrama. This river going to go to Madrid, and in front of there are many trees.

This is the park. There are many ducks in the river. The river is name Guadarrama. This is river going to go to Madrid and in front of there are many trees.

This is the park. There are many ducks in the river. The river is name Guadarrama. This is river going to go to Madrid and in front of there are many trees.