Complex sentence: There are two main areas: inside the dome Ataun, mainly occupied by masses of average growth, and the beech forest that extends through southern Aralar from Balankaleku to Errenaga, which is one of the best examples of high mountain beech forest in the Basque Country.
Split into simpler sentences: There are two main areas: inside the dome Ataun, mainly occupied by masses of average growth, and the beech forest that extends through southern Aralar from Balankaleku to Errenaga. This beach is one of the best examples of high mountain beech forest in the Basque Country.