Spend a free day today swimming, lazing in the sun or exploring Koh Samui. You may like to take an optional day tour to Ang Thong Marine National Park by either slow boat or speedboat. The park is an archipelago of over 40 islands in the Gulf of Thailand, featuring pristine beaches, jungle, mangroves and limestone mountains rising out of the sea. Take a swim at popular Koh Mae island and check out the saltwater lagoon of Thale Nai (Emerald Lake). For a quieter experience and some great snorkelling opportunities, head to the nearby islands of Koh Tao and Koh Nang Yuan.If you prefer to stay on land perhaps check out the Samui Elephant Sanctuary and observe these gentle giants as they roam, socialise, bathe and enjoy a peaceful life that they so deserve.