Ko Samet, also spelled Koh Samed, is a small island off the Eastern Gulf Coast in Rayong province, within easy reach of Bangkok and Pattaya. 200 km from Bangkok in the Gulf of Thailand, the T-shaped island of Ko Samet is known for its white sandy beaches, exotic coral and clear waters. 

Ko Samet has developed steadily over the past decade or so, but it hasn't been the victim of over-zealous construction found on Ko Samui and Ko Chang. The island is surrounded by tropical coral reefs and relatively clean seas. Tourists can also enjoy delicious cuisine and fine nightlife.

It's a popular tourist destination for both Thais and foreigners. As Ko Samet is close to Bangkok, the island is ideal for those in the capital wanting to relax with their families for a couple of days, without having to go through all the rigmarole of travelling down south. It's a 2½-hour journey to Ban Phe, then a 20-min ferry to the island.

- Wikivoyage