Translation of Slovak in Spanish

As it was the primary attraction for all tourist we were "escorted" by a few thousand other visitors. Our guide Samuel informed us about the ancient history of this special place.
I understand that you use the article 'die' when talking about a feminine object, das when the subject is neutral, and der when talking about a masculine object. But how can you remember all these?
We caught the last bus leaving from Calama to San Pedro the Atacama in the Atacama desert, the driest place on earth. Even NASA is using this place as a live moon simulation area. It was night though.