Koh Samui is very nice, but also very touristy. It is the biggest island on the east coast, next to Koh Tao and Koh Phangan.

What to do in Koh Samui

• Ladyboyshow: this is really funny
• National Park: here are so many small islands and it is perfect to do a day or two day trip to the National Park and going snorkeling
• Grandmother and Grandfather Rock
• Mu Ko Ang Thong National Park