Complex sentence: They returned south and settled in Pulau Tekong (now in Singapore) after their weddings, telling the locals about their experience witnessing the Mak Yong performance in Kelantan.
Split into simpler sentences: They returned south and settled in Pulau Tekong (currently located in Singapore) after the marriage. They then told their stories to the locals about their experience witnessing the Mak Yong performance in Kelantan.