From Donsak (on the mainland, located 40 km from Surat Thani) take the ferry to Koh Samui, 3 nights.
The crossing takes approximately 1.5 hours and is beautiful. Explore Koh Samui’s most beautiful beaches on the east coast and north coast. Also explore Koh Samui’s waterfalls, lively nightlife and the deserted spots where you have a whole beach to yourself.