The Khai Islands are three small islands, Khai Nok, Khai Nui and Khai Nai, lying just off the south-east coast of Phuket. They are a favourite for a quick escape because they combine white sand, bright blue water and an easy boat ride that takes about thirty minutes from the pier at Chalong. The trip is a gentler alternative to the long Phi Phi or Similan days, and it suits families, first-time snorkellers and anyone who would rather spend more time in the water than on a boat. The speedboat stops at each island in turn, so you can swim, snorkel the reef edges, walk on the beach and lie in a hammock under the casuarina trees. Visibility is best in the dry season, when the water is clear enough that you can see fish from the surface. Because the islands are close to Phuket, the tour can run as a half day or stretch out to fill a full day with lunch included.
How it works
The tour begins with a hotel pickup and a short drive to Chalong or a nearby pier, where you board a speedboat with a crew. Snorkel gear and life jackets are provided, and guides give safety instructions before you enter the water. Each island has its own character: Khai Nok has a long, fine beach with calm shallows, Khai Nui has a small reef close to shore, and Khai Nai offers a quieter stretch of sand.
The boat usually stays at each stop for between thirty minutes and an hour, with the guides showing the best snorkel spots and offering to help beginners.
What to expect
Fish of many colours dart around the coral and rocks, and on a good day you will see parrotfish, angelfish and shoals of small silvery fish. The islands are popular, and the beaches can be busy from late morning when other boats arrive. To avoid the busiest times, choose the earliest departure or a half-day trip that finishes before lunch.
A full-day version adds a lunch stop and sometimes a visit to another nearby island. Water sports such as banana boats may be offered at the beach, but you can skip these if you prefer a calmer day.
Making the most of it
Bring reef-safe sunscreen and a rash vest, because the sun is strong on open water. A waterproof camera or phone case is useful for underwater photos. Do not stand on or touch the coral, and avoid feeding the fish, as this harms the reef. If you are prone to seasickness, sit towards the back of the boat and take a tablet before departure.
The Khai Islands are an excellent choice for families with young children because the water is shallow and the boat ride is short. A national park or marine fee may apply in some cases and is paid in cash, so keep small notes handy. In the wetter months, seas can be rough and trips may be cancelled or rerouted, so keep a spare day in your plan.
Another good reason to choose the Khai Islands is flexibility. Because they are so close, operators can adapt departure times to the tide and the weather, and a morning trip leaves the afternoon free for a spa visit, a long lunch or a late-afternoon drive up to a viewpoint on the west coast.
What to expect
The experience
A speedboat tour with hotel pickup that visits the three Khai Islands for snorkelling, swimming and beach time, with gear and life jackets provided.
Best time
November to April, when seas are calmest and the water is clearest.
How long
A half day takes about four hours; the full-day version takes six to eight hours including lunch.
Tips
Wear reef-safe sunscreen and a rash vest, take a seasickness tablet if you need one, and carry small notes for any park fee.
Quick picks
- Best for
- Beach lovers and first-time snorkellers who want clear water without a long boat ride.
- Families
- A great choice for children, with shallow water and a short crossing.
- Couples
- Quiet corners of sand and a relaxed pace make a relaxed day for two.
- Pair with
- Old Phuket Town in the evening, or a sunset at Promthep Cape.
- Time needed
- Half a day or a full day.
Good questions
How far are the Khai Islands from Phuket?+
They are about thirty minutes by speedboat from the pier at Chalong, which makes them one of the closest island groups.
Do I need to be able to swim to snorkel at the Khai Islands?+
You should be comfortable in water, although life jackets are provided and the guides help beginners.
Is the Khai Islands tour good for children?+
Yes. The crossing is short, the water is shallow at the beaches and the pace is relaxed.
What is the best time of year for the Khai Islands?+
November to April, when seas are calm and the visibility is best.
Will the beaches be crowded?+
They can be busy in the middle of the day. Choose an early departure or a half-day trip to see them at their quietest.
