Complex sentence: The Outeniqua range rises from the Indian Ocean coastal plain north of the town of Mossel Bay and then continues for about 100 km to the east before ending at the Keurbooms River Valley, which enters the ocean at Plettenberg Bay.
Split into simpler sentences: The Outeniqua range rises from the Indian Ocean coastal plain, north of the town of Mossel Bay. It continues for about 100 km to the east before ending at the Keurbooms River Valley, which enters the ocean at Plettenberg Bay.