"The black cats are walking out to the garden and are lying down to the grass."

Translation: A fekete macskák kisétálnak a kertbe és lefekszenek a fűre.

[RobertEddy]

Lying down to -- not English. Apart from that, yes, it is a nice sentence.

[RyagonIV]

This is a nice sentence. The English translation captures everything the Hungarian sentence is trying to express without sounding too wonky. :)

[Scherjuli]

A biiig nit-picking again! Szoorszalhasogataaas! :)