The small islands of Koh Rok and Koh Rok Nai lie south of Koh Lanta in the Mu Ko Lanta National Park. With this tour, cruise out to explore the islands by speedboat and dive in to swim and snorkel in the Andaman Sea. Along the way, admire natural wonders such as Koh Rok Waterfall and head ashore to enjoy lunch by the beachside.