Nathon Pier is one of the main and most used marinas on Koh Samui.
Ferries and speed boats run from here to the islands of Koh Phangan and Koh Tao, as well as to the mainland to the Surat Thani area.
The harbour is located in Nathon, where you'll find restaurants, shops and local markets, making it a handy point for both travel and a short stop during the day.