Complex sentence: The north of the park is more rugged and mountainous with forests and grasslands and is known as the Hluhluwe area, while the Umfolozi area is found to the south near the Black and White Umfolozi rivers where there is open savannah.
Split into simpler sentences: The north of the park is more rugged and mountainous with forests and grasslands and is known as the Hluhluwe area. While the Umfolozi area is found to the south near the black and white umfolozi rivers where there is open savannah.