Seatran Ferry currently has 8 ferries with an average speed of between 13-16 nautical miles per hour. This means that the journey will take approximately 1 hour and 30 minutes from Donsak to Koh Samui (or from Koh Samui to Donsak). At Seatran Ferry we have a daily service every hour from 5:00 am to 6:00 pm to take you from Nathon Pier on Samui Island to Donsak Pier, and from 5:00 am to 6:00 pm from Donsak Pier to Nathon Pier on Samui Island. All of our ferries have been certified and licensed by domestic and overseas organisations, which guarantee superior quality and international safety standards. Seatran will always continually strive to further improve and develop its products and services. BOOK NOW at THE TRAGO