Visitors based at Santiburi Koh Samui or any other Koh Samui family resort will find that a day trip to Ang Thong National Marine Park is among the most popular things to do in the area. Considered the most pristine marine park in all of Thailand, the sanctuary, which was once featured in the Hollywood blockbuster The Beach, has been a beach lover's dream destination for decades. In addition to exploring its breathtaking islands and limestone cliffs, Ang Thong National Marine Park is also ideal for engaging in a wide variety of water sports including kayaking, snorkelling, scuba diving and sailing. Tourists can book a tour of this captivating marine ecosystem via a local tour operator or their resort base.