Koh Khai is a small group of three islands: Koh Khai Nok, Koh Khai Nai, and Koh Khai Nui. Located in the Andaman Sea in Phang Nga province, they are very easily accessible from Phuket, making them a popular one-day trip destination for tourists of all ages. The highlight of the Koh Khai islands is the clear, emerald-green water, fine white-sand beaches, and the abundance of beautiful fish swimming near the shore. This makes snorkeling and swimming the main activities that tourists enjoy.
Activities and Highlights
The main activities on a Koh Khai trip are snorkeling and feeding the fish. You can rent snorkeling gear from tour operators or bring your own. Other activities include taking a glass-bottom boat tour to see the fish, taking beautiful photos with the pristine sea views, and relaxing on beach chairs. Koh Khai is an excellent choice for those who want to experience the beauty of the Andaman Sea in a short amount of time. It's especially suitable for family trips or for anyone looking for a convenient snorkeling spot with plenty of fish. While it can get crowded, the beauty of the water and the abundant marine life make it well worth the visit

Koh Khai A Paradise Island Near Phuket
- Koh Khai Nok: This is the largest of the three islands, with a beautiful curved white-sand beach. The shallow, clear water allows you to see small schools of fish clearly, making it perfect for relaxing, walking on the beach, and feeding the fish.
- Koh Khai Nai: This island has a slightly quieter atmosphere than Koh Khai Nok. It's ideal for those who want to escape the crowds and truly relax.
- Koh Khai Nui: This is a small rocky island with no beach, but it's the best spot for snorkeling among the three islands, as it's home to a diverse variety of coral and fish.
Advantages
- Easy to travel to: It takes only about 20-30 minutes by speedboat from Phuket's pier.
- Very clear water: The sea is so clear that you can see fish and coral from the boat or the shore.
- Lots of fish: There are large schools of fish that are used to people, allowing for close-up feeding and photo opportunities.
- Suitable for everyone: Anyone, including children, the elderly, or those who aren't strong swimmers, can easily enjoy playing in the water and watching the fish.
Disadvantages
- Crowded: During the high season, Koh Khai can be quite crowded with a large number of tourists.
- Limited space: As the islands are small, there is limited space for activities and exploration.
- Limited facilities: Most trips are day trips, with only small shops and restrooms available. They are not suitable for overnight stays.