
Published 26 February 2026. Last reviewed 3 May 2026
Chicken Island, Koh Kai to give it its Thai name, earns its place on every Krabi boat tour with two simple charms. The first is the rock that names it, a tall thin pinnacle at one end of the island that really does look like a chicken's head and neck craning out of the sea, the sort of natural oddity that makes everyone reach for a camera as the longtail rounds the point. The second, and the better one, is the Talay Waek, the divided sea, a pale sandbar that rises out of the shallows at low tide to join Chicken Island to the neighbouring islets of Tup and Mor, so that for a few hours you can walk on water between three islands with the warm sea lapping each ankle.
The honest read is that all of this lives and dies by the tide. Come at a high tide and the famous sandbar is simply not there, just open water between the islets, and the island shrinks to a quick snorkel and a photo of the rock from the boat. Come at the wrong hour of a busy day and you share the experience with the entire four island fleet, since this is one of the headline stops and the longtails converge at lunchtime. There is almost no shade, only minimal vendors, and a national park fee to pay in cash that the cheaper trips conveniently omit. Treat Chicken Island as a box to tick on a packed tour and it can underwhelm.
So we treat it the way it rewards, as a tide first, early morning island. Pick a day when low water falls in the morning, charter a longtail or choose a tour that times the sandbar well, and arrive before the fleet to walk the Talay Waek with space around you and the chicken rock catching the early light. Snorkel the reef while the water is still calm and clear, keep off the coral, bring your own shade and water, and pair it with Poda and Phra Nang for an island day you have shaped yourself. Get the tide right and Chicken Island gives you one of the loveliest, quietly surreal hours on this whole coast.
There is no club on these protected islets, so the comfort waits back on Ao Nang. See our Krabi beach clubs directory for the venues that do the lounging.
Chicken Island and its sandbar neighbours are national park islets with minimal vendors and no service to speak of, which is exactly why the snorkelling and the sandbar stay unspoiled. Plan it as a self contained tide and snorkel stop with your own shade, water and picnic, and let the daybed and the cold drink wait for the mainland.
Ao Nang is where the longtails leave and where the day ends in comfort, with Reeve and Katara leading a polished sunset scene over a proper lounger. Walk the sandbar in the morning, settle into an Ao Nang club for golden hour, and you bookend the wild little islets with an easy evening on the mainland sand.
Most boats fold Chicken Island and Poda into the same day, and the two make a lovely pair, the surreal sandbar and the postcard beach a few minutes apart. Snorkel the chicken rock, walk the Talay Waek, then land on Poda's powder sand for a swim, and you have the best of the four island route on your own gentle schedule.
Chicken Island lies about thirty minutes by longtail southwest of Ao Nang and is reached only by boat, either on a private charter or as part of the four island tour that pairs it with Poda, Tup and Phra Nang. A national park fee is collected in cash on the islands, usually left out of the cheaper tour prices, so carry enough baht for your group. The sandbar walk depends on low tide, so check the tide tables before you book and ask any longtail captain to time the visit around the low water.
Go in the dry season from November to April for the calmest sea and clearest snorkelling, and choose a day with a morning low tide to see the Talay Waek at its best and quietest. Bring water, reef safe sun cover, a hat and a mask, since there is almost no shade and only minimal vendors. Mind the currents along the sandbar and the boat traffic, swim within your depth, float gently over the coral, and treat the tide times and the conditions here as typical and never guaranteed.
Walk the sandbar in the morning, then settle into a sunset club back on Ao Nang. Tell us your date and party and we will point you to the right spot for two. No obligation, and we reply within 24 hours.
The island, Koh Kai or Koh Hua Khwan in Thai, takes its name from a tall thin limestone pinnacle at one end that looks remarkably like a chicken's head and outstretched neck. Koh Kai itself means chicken island. It is the photograph everyone takes here, best caught from the water as your boat rounds the point, and it gives this small snorkelling island its memorable, slightly comic fame.
Talay Waek means divided sea, and it is the pale sandbar that surfaces at low tide to link Chicken Island with the neighbouring islets of Tup and Mor, so you can walk between them across the shallows. It is the signature sight here, but it only appears around low water, so the magic depends entirely on the tide. Check the tide times before you go, and treat them as typical and never guaranteed.
It is one of the better snorkelling stops near Ao Nang. The water around the chicken shaped rock holds healthy coral and plenty of fish, with clownfish, parrotfish and angelfish among them in clear, shallow conditions on a settled day. Bring your own mask for the best fit, float gently and never stand on the coral, swim within your depth near the boat traffic, and treat the conditions as typical and never guaranteed.
Chicken Island lies about thirty minutes by longtail boat southwest of Ao Nang and is visited by charter or as part of the popular four island tour with Poda, Tup and Phra Nang. There is a national park fee paid in cash on the islands, usually left out of the cheaper tour price. Boats run in daylight and the crossing is calmest in the dry season, so plan your day around the tide and the weather.
Come in the dry season from November to April for the calmest sea and clearest snorkelling, and pick a day when low tide falls in the morning so you reach the Talay Waek sandbar before the four island fleet arrives at lunchtime. Early light, a low tide and an empty sandbar make this a quietly magical stop, while a midday high tide on a busy day shows it at its least special.