Complex sentence: To this it must added that while some regions of Chile have very strong indigenous heritage such as Araucanía Region, Easter Island and Arica y Parinacota Region other lacks indigenous peoples and other regions have noteworthy non-Spanish European immigrant heritage.
Split into simpler sentences: To this it must added that while some regions of Chile have very strong indigenous heritage such as Araucanía Region, Easter Island and Arica y Parinacota Region. Some regions lacks indigenous peoples and a few other regions have noteworthy non-Spanish European immigrant heritage.