The 4 Islands Tour visits Tup Island (Koh Tup), Chicken Island (Koh Gai), Poda Island (Koh Poda), and Phra Nang Cave Beach on Railay. Each has a distinct character: Tup for its tidal sandbar, Chicken for snorkeling, Poda for beach and lunch, Phra Nang for its sacred cave. The four together cover more variety in a single day than most destinations offer in a week.
Tup Island is the one that requires the most from your timing. The sandbar that emerges between Tup and the neighboring Mor Island at low tide creates a walkable strip of white sand surrounded on both sides by clear water. It looks like something produced by a visual effects team and disappears completely under two metres of seawater when the tide rises. Whether you walk it or find it submerged depends entirely on what time your tour arrives, which is why departure time matters more on the 4 Islands route than nearly any other tour in Krabi.
Chicken Island gets its name from a limestone formation at the island’s tip that, viewed from the approaching boat at the right angle, genuinely resembles a chicken’s head and beak. It’s one of those geological coincidences that takes a moment to register and then becomes obvious and unavoidable. The snorkeling around Chicken Island is the best on the standard 4 Islands circuit: the reef is healthy, the water clear, and with an early start you can be in before the visibility gets stirred up by other boats.
Poda Island is the lunch stop and the longest stay on most itineraries. It has white sand, shade from limestone-backed vegetation, clear water for swimming, and basic facilities including food stalls and toilets. The limestone karsts visible from its beach are the ones that appear in a significant portion of Krabi’s promotional imagery. It earns that.
Phra Nang Cave Beach sits on the western edge of Railay peninsula, accessible only by boat. The beach is one of the most striking in southern Thailand: cliffs rising directly from the sand, turquoise water, and the cave itself tucked into the base of the limestone. Inside the cave is a shrine dedicated to the sea princess Phra Nang, a spirit believed to protect fishermen and grant fertility. The shrine fills with wooden offerings left by locals and boatmen over generations. It’s a genuinely sacred site and deserves more than a five-minute look followed by a photograph.
Want to know which Krabi boat tour actually gets you to the best islands without spending half the day in transit? Here’s our Krabi boat tours guide so you book the right experience from the start.
A standard group 4 Islands tour includes hotel pickup and drop-off (within Ao Nang area), the boat, a guide, snorkel masks and fins, a life jacket, lunch on Poda Island, drinking water, and seasonal fruit. National park fees are excluded from all tour prices by Thai national park regulations and must be paid separately in cash at the islands: 200 THB per adult foreigner, 100 THB per child aged 3-14.
The inclusions list looks generous on paper, and most of it is. The pickup is the piece that saves the most hassle: a songthaew or Grab from a Krabi hotel to Nopparat Thara Pier runs 100-250 THB each way, and on a morning when you’re carrying snorkel gear and navigating an unfamiliar pier, having a driver appear at your hotel lobby matters more than the cost.
Snorkel gear quality is where tours differentiate themselves most significantly, and where the cheapest options fall shortest. A well-run operator provides masks with proper seals and fins that fit. Budget operators provide masks that fog immediately and fins that slip off in the water, which converts the snorkeling stop from a highlight into a struggle. If you own snorkel gear or can rent from a dive shop in Ao Nang, bringing your own removes this variable entirely.
Want to know which islands around Krabi actually deliver clear water and healthy coral rather than just a crowded snorkel stop between boat tour photo opportunities? Here’s our best islands for snorkeling near Krabi guide so you prioritize the right ones.
Lunch on Poda Island is typically a Thai box lunch or buffet. Operators vary: some provide a proper spread of rice, curry, and grilled items served on the beach; others hand out packaged boxes. Dietary preferences should be communicated at booking, not at the pier. Most operators accommodate vegetarian requests with a day’s notice. Lunch quality is one of the most consistent points of variation between operators at similar price points, and worth reading recent reviews specifically for.
One item that surprises almost every first-timer: the national park fee cannot legally be included in tour prices under Thai Department of National Parks regulations. This applies to every operator, from street kiosk to premium agency. Any operator claiming to include the park fee in their base price is either misrepresenting their pricing or absorbing it as a loss. Budget 200 THB per adult in cash before you board.
Questions about what a specific tour includes before booking? The team at Krabi Boat Tours answers every message and can walk you through exactly what’s covered on any of our departures.
Both routes cover stunning Andaman scenery but they deliver very different days on the water – our Hong Islands vs 4 Islands guide breaks down exactly what sets them apart and which one suits different types of travellers.
Group tours run 900-1,200 THB per person for a full day, with most reputable operators in the 1,000-1,200 THB range. Private longtail charters start at 2,500 THB for the whole boat for a half-day. Add 200 THB per adult for the national park fee. Budget travelers can find tours from 800-900 THB, but quality differences at that price point are real and worth understanding before booking on price alone.
The range between 800 THB and 1,200 THB for what appears to be the same tour is not random. Operators at the lower end typically run older boats, provide worse snorkel gear, have larger group sizes (some group tours run 25-30 people on a single boat), and may use guides whose English is limited to announcing stop names and departure times. Operators at the higher end of the group range cap groups at 12-15, provide better gear, and deploy guides who explain what you’re looking at and why it matters.
All prices verified June 2026.
Private charter math works in favor of groups of four or more. Four people on group tours at 1,000 THB each totals 4,000 THB. Four people on a private half-day longtail at 2,500 THB totals 625 THB each, cheaper than a group ticket, with a private boat. Six people reduce it further to 416 THB each. The per-person breakeven point between group and private is typically around three people.
A standard 4 Islands Tour runs 6-8 hours from hotel pickup to drop-off. Pickup begins between 7:30 and 8:30am, boats depart pier around 9am, and you’re back at your hotel by 3:30-4:30pm. Each island stop runs 45-90 minutes. Lunch is typically served at Poda Island around midday. The sequence of islands varies by operator and tide, but most days end at Phra Nang Cave Beach before the return crossing.
The morning starts at your hotel, not the pier. A songthaew or minivan collects guests from multiple hotels in the Ao Nang area, which means your actual pickup time and the boat’s departure time are different things. A pickup at 7:45am typically means pier arrival around 8:30am and boat departure around 9am, once all passengers have gathered, had coffee, used the facilities, and been sorted by tour operator. Factor this into your morning. Arriving at the pier undercaffeinated and ten minutes late creates a bad first hour.
The island stops themselves run roughly as follows on a typical full-day longtail tour: first stop is usually Chicken Island for snorkeling, 45-60 minutes; second stop Tup Island for the sandbar (tide-dependent), 30-45 minutes; third stop Poda Island for lunch, swimming, and relaxing, 60-90 minutes; final stop Phra Nang Cave Beach, 45-60 minutes before the crossing back to the pier. Speedboat tours compress the transit times and typically allow slightly longer stays at each island with the same number of stops.
The sequence above can shift significantly based on tide conditions. A good operator builds the itinerary around the day’s specific tide chart rather than a fixed template. This is one of the most meaningful differences between operators: the ones who check the tide and adjust, versus the ones who run the same order every day regardless of conditions. Ask directly before you book: does the operator schedule the Tup Island sandbar stop around low tide?
Want a practical island hopping plan that actually fits around your other Krabi activities and rest days? Here’s our Krabi island hopping itinerary guide so nothing clashes and nothing gets missed.
For the 4 Islands circuit specifically, both boat types work well because all four stops are within 30 minutes of Ao Nang by longtail. The speedboat reduces transit time by 15-20 minutes per crossing, giving marginally more time on each island, and handles choppy days more comfortably. The longtail costs 20-30% less, rides lower on the water, and produces a more memorable experience. Neither choice is wrong; both arrive at the same islands.
The honest answer from 15 years on this water: the 4 Islands circuit is the one route where the longtail’s slower speed causes the least practical loss. All four stops are close enough that the extra 15-20 minutes per crossing is offset by the experience of being in a traditional vessel navigating between limestone karsts with the engine running and the bow spray catching the morning light. People remember the longtail. They remember it differently than they remember a speedboat. Neither is better; they produce different days.
Where the speedboat earns its price premium: choppy days, families with young children who need less transit time, and travelers who get seasick easily. The speedboat’s forward motion in any kind of swell is steadier than the longtail’s rolling. If the sea has any movement on your departure day, the speedboat makes the crossings more comfortable for passengers who are susceptible to motion sickness.
Group size matters here too. Budget group longtail tours can run 20-30 passengers on a single large traditional boat. That’s a crowd. A speedboat tour capped at 15 people in the same price range provides more deck space, better visibility from the boat, and a quieter island experience at each stop since you’re not disembarking en masse with 29 other travelers.
Trying to decide between the classic Thai longtail experience and the efficiency of a speedboat that covers more islands in less time? Check out our longtail boat vs speedboat in Krabi guide before you commit to either.
The essentials: cash for the national park fee (200 THB per adult, exact amount in a separate pocket), reef-safe sunscreen applied before you board, a dry bag for your phone, a rash guard or long-sleeve swim top, water shoes with grip for boarding, and more drinking water than you think you need. The things most travelers forget: their own snorkel gear, a change of clothes for the return, and a hat that won’t blow off the moment the boat accelerates.
The cash situation deserves its own paragraph because it creates problems at the same rate every season. You will arrive at an island and a ranger will collect 200 THB per adult in cash. Not card. Not bank transfer. Cash, in Thai baht, at that moment, with a queue of other tour boats waiting behind yours. Travelers who prepared will pay and move on. Travelers who didn’t will cause a delay for the entire group while they negotiate with a captain who may or may not be able to cover the fee for them temporarily. Carry 400-500 THB per person beyond your estimated expenses specifically for park fees and contingencies.
Reef-safe sunscreen is not a suggestion. The coral reefs around Chicken Island and Poda Island are part of a protected marine national park. Conventional sunscreens containing oxybenzone and octinoxate degrade coral. Many operators ask passengers to use mineral-based SPF alternatives. Apply 20 minutes before entering the water so the product bonds to your skin rather than washing directly into the reef. Bring your own rather than relying on what’s available at the pier.
The dry bag is the item that most first-timers skip and most experienced travelers never leave without. Boarding a longtail at most 4 Islands stops involves stepping into ankle-to-knee-deep water or climbing over a wet gunwale. Your phone and documents will be in your hand at that moment, and the boat will shift as you board. A dry bag or waterproof phone pouch costs 100-200 THB at any Ao Nang shop and removes that variable entirely.
photo from James Bond Island Speedboat Tour with Canoeing
The three patterns that come up most consistently in post-tour feedback: not checking tide timing before booking, underestimating sun exposure on an all-day open-water tour, and arriving at the pier without cash for the national park fee. Each is preventable. A fourth pattern specific to the 4 Islands route: treating Phra Nang Cave Beach as a photo stop rather than a cultural site, and missing what makes it genuinely worth visiting.
The sandbar at Tup Island is the 4 Islands Tour’s signature feature in photographs and the most commonly missed feature in practice. It’s only walkable for roughly two hours around low tide. Tours departing at 9am on a day when low tide falls at 7am will arrive at Tup Island with the sandbar already submerged. That happens to a meaningful portion of 4 Islands tour guests every peak season, and the consistent feedback is: nobody told me it depended on the tide. Check the tide table for your specific date before booking. Ask your operator what time the sandbar stop is scheduled and whether they adjust the route for tide conditions.
Sun exposure is the slow ambush. You leave the hotel in the morning feeling fine. By 11am you’ve been on open water for two hours, the reflected UV off the sea surface has doubled your actual exposure, and the breeze has convinced you it isn’t hot. By the time you’re back at your hotel at 4pm the damage is done. Wear SPF 50, reapply after every swim, wear a hat that covers your neck, and consider a long-sleeve rash guard for the boat crossings. This is not cautious tourist advice: it’s what the guides do.
Phra Nang Cave Beach is the stop that gets 45 minutes on most group tour schedules and deserves at least twice that. The beach itself is extraordinary. The cave contains one of the most unusual active shrines in southern Thailand: hundreds of carved wooden phallic offerings, some over a metre tall, left over centuries by fishermen praying to the spirit of the Princess Goddess Phra Nang for safe passage and good catches. The beliefs behind those offerings blend Hindu, Buddhist, and animist traditions in a way that’s specific to this coast and genuinely worth understanding before you arrive. It is a sacred site. Walk through it with that in mind.
our mission at Krabi
Yes, for almost every type of traveler visiting Krabi, the 4 Islands Tour is worth it. It covers more ground in a single day than most independent efforts, puts you on four distinct beaches and a reef, includes a meal, and costs 900-1,200 THB before park fees. The ceiling on the experience rises significantly with a better operator, an earlier departure, and a tide-calibrated itinerary. The floor is a crowded boat with average snorkel gear arriving at the sandbar two hours too late.
The honest version: the 4 Islands circuit contains some of the most beautiful coastal scenery in Southeast Asia. That’s not marketing. Poda Island’s beach from the water, the limestone karsts catching morning light, Phra Nang’s cliffs meeting the sea at the edge of the sand, the moment you drop off the side of the longtail at Chicken Island and the reef comes into focus under three metres of clear water. These things are as good as their reputation.
What determines whether your specific 4 Islands day is excellent or merely fine: the operator’s departure time, the guide’s knowledge, the boat’s group size, and whether the itinerary has been built around that day’s tides. A tour that hits the sandbar at the right moment, gets to Chicken Island before the other boats disturb the water, and has a guide who explains what you’re looking at rather than just announcing stop names is a genuinely excellent day. A tour running 25 people on an old boat with a 9:30am departure and a fixed itinerary regardless of tides is a decent day that could have been much more.
From our 11,700 travelers, the single change that most consistently improves the 4 Islands experience is an earlier departure. Guests who request or book early-start tours arrive at each island ahead of the peak mid-morning rush, find the sandbar at or near low tide, swim at Chicken Island before the water is disturbed, and reach Phra Nang Cave Beach before the beach fills. That costs nothing extra. It just requires asking.
We’ve put together a full comparison in our Krabi tour vs DIY island hopping guide so you know exactly which approach fits your budget, confidence level, and how much flexibility you actually want on the water.
Ready to book, or want to talk through which tour fits your specific dates, group, and budget? Our team at Krabi Boat Tours has run this circuit since 2011 and will give you a straight answer on current conditions before you commit.
The sandbar miss rate is the number we work hardest to eliminate. Every Krabi Boat Tours 4 Islands departure is scheduled with the day’s specific tide chart. We move the Tup Island stop to when the water is actually pulling back, not when it’s convenient for the vehicle schedule. That one adjustment is the difference between walking 200 metres of white sand between two islands surrounded by turquoise water, and standing on a beach looking at a flat sea where the sandbar used to be.
No. Thai national park regulations prohibit operators from including the park fee in tour prices. The fee is 200 THB per adult foreigner and 100 THB per child aged 3-14, paid in cash to a ranger at the island. Every operator and every booking platform is subject to this rule. Carry the cash separately before you board.
Only at low tide, for approximately two hours around the low tide point. Whether you can walk it depends entirely on what time your tour arrives at Tup Island relative to that day’s tide schedule. Ask your operator whether they adjust the stop order based on tide conditions before booking. Tours that depart early (before 8am) have the best chance of timing this correctly.
Phra Nang Cave Beach is one of the most visually dramatic beaches in southern Thailand, accessible only by boat at the western edge of Railay peninsula. The cave at the base of the limestone cliffs contains a sacred shrine dedicated to the Princess Goddess Phra Nang, filled with carved offerings left by local fishermen over centuries. It’s a beach and a cultural site simultaneously. Treat the cave with the same respect you’d show any active place of worship.
Group sizes vary widely by operator. Budget longtail group tours can run 20-30 passengers. Mid-range and quality operators typically cap groups at 12-15 on a longtail or 15-20 on a speedboat. Group size is worth asking about specifically before booking: it affects your comfort on the boat, your time in the water, and how crowded each beach stop feels when you disembark.
Yes. Children are welcome and most operators charge 50% of the adult tour price for children under 12. Children aged 3 and under are usually free. The 4 Islands circuit is family-friendly on calm days: the beach stops are accessible, the water at Poda Island is clear and relatively gentle, and the snorkeling depth is manageable. On choppy days, families with very young children should consider postponing or booking a private charter to allow early return if needed.
In shoulder and low season, a day or two in advance is usually sufficient. In peak season (December to February), book at least three to five days ahead for group tours with reputable operators. Private charters in peak season should be secured a week or more in advance, particularly around Christmas and New Year when Ao Nang boats fill well ahead of departure dates.
Written by Ryan Supakorn Thai tour guide since 2011 · Founder, Krabi Boat Tours Ryan has guided over 11,700 travelers through Krabi’s islands, lagoons, and coastline since founding the agency.
