Phuket's Khai Islands: A Half-Day Snorkel Escape

Speedboats reach the first Khai island in about 30 minutes from either Chalong Pier or Royal Phuket Marina, both on the south-east side of Phuket. Door-to-door from a hotel in Patong, Kata or Karon you should budget around 60-75 minutes including the road transfer. The Khai group sits in a sheltered bay east of Phuket, so the crossing is much smoother than the open-water run to Phi Phi or the Similans. If you get seasick easily, this is the gentlest snorkel trip on offer from the island and a good warm-up before booking a longer day tour.

They're great for beginners, families and anyone who wants easy, shallow snorkelling without strong currents. Visibility averages 6-8 metres and the reef sits just a few metres off the beach in waist-to-chest deep water. You will spot parrotfish, angelfish, sergeant majors, clownfish in anemones and small reef sharks on calm mornings. Coral health is modest compared with Phi Phi or the Similans - much of the hard coral is bleached or broken - so seasoned snorkellers may find it underwhelming. For a first-time snorkel experience, however, Khai is hard to beat.

Half-day group speedboat tours run around $50-70 per person and typically cover one or two islands plus lunch on Khai Nok (paid separately). Premium tickets at $70-85 include all three islands, a buffet lunch, hotel transfer, snorkel gear, towels, fruit, water and national park entry. Private speedboat charters start around $400 for up to 8 people. Children under four are usually free and 4-11 year olds pay roughly half price. Note: the 200 THB national park fee is sometimes excluded - check before booking.

Yes. Because the islands lie on the east side of Phuket, sheltered from the south-west monsoon, day trips operate almost year-round. From May to October the swell is bigger on the Andaman side, but the Khai bay stays calm enough for speedboats most days. Visibility drops to 4-6 metres and the water can look greenish, but the beaches are still beautiful and tours are quieter and slightly cheaper. Keep one buffer day in your itinerary in case of a rare weather cancellation, and check the forecast the night before your tour.

Pick Khai if you have only a half day, are travelling with small kids or non-swimmers, get seasick easily, or want a budget snorkel option close to Phuket. Pick Phi Phi if you want dramatic limestone scenery, Maya Bay, healthier reefs and don't mind a 90-minute speedboat ride each way and a full 9-hour day. Many travellers do both: a relaxed Khai half-day on arrival to test their sea legs, followed by a full Phi Phi day later in the week. The two trips complement each other rather than overlap.