Ko Samed is a rather small island where you will find some of the most beautiful beaches in Thailand. The water is also normally very clear here. Relaxation is the main activity here, so spoil yourself a little and "refill your batteries". It is a perfect place for hiding away from daily life stress and work. Anyhow, you are still close to Bangkok and it's shopping, night life and attractions.
Kudi Island is a small island in the Koh Samed Kao Laem Ya National Marine Park which provides execellent diving opportunities. The sea floor comprises solid rock which gently slopes into deeper water (going down to a maximum depth of 20 metres). The sit offers splendid marline life which includes batfish, reef fish, black coral and sea fan.