Krabi 4 Islands Tour 2026: What You Actually Get (Longtail vs Speedboat)

The 4 Islands tour is Krabi's signature day out — as central to Krabi as the Phi Phi trip is to Phuket, and for most visitors it's the reason they came. The circuit covers:

Phra Nang Cave Beach — On the Railay peninsula: soft sand under a vast limestone overhang, clear water, and the Princess Cave shrine with its wooden offerings. Frequently rated among Thailand's most beautiful beaches.

Chicken Island (Koh Kai) — A limestone stack whose profile genuinely does look like a chicken's head and neck from the right angle. The snorkelling around it is the best of the day: decent coral and reliable fish.

Tup Island (Koh Tup) and Mor Island — Small, low, sandy.

Poda Island — The most spacious and relaxed stop: a broad white beach, casuarina shade, and a signature limestone tower offshore. Usually the lunch stop.

And the part that makes the tour: at low tide, a sandbar surfaces and physically connects Tup, Mor and Chicken Islands, so you can walk between islands across the seabed with water on both sides. Thais call it Talay Waek — "the separated sea" — and it's the most photographed natural sight in Krabi.

This is the single most important planning fact on this page: Talay Waek only exists at low tide. A tour timed against the tide gives you four pleasant beaches. A tour timed with it gives you the thing you actually saw in the photos. Ask the operator directly what the tide is doing on your date — good ones will tell you without being pushed.

This choice shapes the whole day, and it isn't just about money.

Longtail boat — The traditional wooden boats with the long propeller shaft. Slower, open to the air, and the more atmospheric experience by a wide margin. You sit low to the water, the karsts pass at a human pace, and the boat can nose into shallow places speedboats can't. Downsides: loud (that engine is unmuffled), slower between stops so you cover less, and genuinely uncomfortable in choppy water. Group sizes are small. From about $21 for a shared day — the 4 Islands and Separated Sea longtail tour is the classic version.

Speedboat — Fast, covers the circuit with time to spare, handles swell far better, and usually carries more people with a proper crew, lunch and gear. Less romantic, more efficient. Typically $33–50, like the classic 4-island tour with snorkelling and hotel pickup.

Private charter — A longtail for your group runs roughly ฿2,500–4,000 for the day depending on season and negotiation; you set the order and timing, which is the only way to truly beat the crowds.

Our honest steer: if the sea is calm and you want the *experience*, take the longtail — it's the way Krabi has always done this. If you're prone to seasickness, travelling with kids, visiting in shoulder season, or want maximum stops, take the speedboat.

A note on "private" upsells: some operators sell "private" tours that simply mean a smaller shared boat. Confirm whether it's genuinely exclusive to your group before paying the premium.

The headline price is rarely the final price, and the gap is almost always the national park fee.

The islands sit inside a marine national park, and foreign visitors pay an entrance fee of roughly ฿200–400 depending on the specific park zone your route enters. Some tours bundle it into the ticket price; many collect it in cash at the pier or on the boat. Ask which before booking — a ฿700 tour plus ฿400 in fees is a different proposition from a ฿900 all-in tour.

Typical all-in day cost per person:

- Shared longtail: $21–35 + park fee

- Shared speedboat: $33–50, more often fee-inclusive

- Private longtail charter: ฿2,500–4,000 per boat + fees

Usually included: boat, snorkel mask and fins, lunch (often a beach buffet or box), drinking water, life jackets, hotel pickup in Ao Nang.

Usually not: park fees, towels, alcohol, GoPro rental, and tips.

Bring: cash for fees and drinks, reef-safe mineral sunscreen (chemical sunscreens are banned in Thailand's marine parks and crews increasingly check), a dry bag, a hat, and motion-sickness tablets taken 30 minutes *before* boarding if you're prone.

Leave behind: drones (prohibited in the national park without a permit, with a serious fine), single-use plastic where you can, and any expectation that your phone survives an unprotected boat day.

The 4 Islands circuit is popular enough that timing matters more than operator choice.

The crowd pattern: the bulk of shared boats leave Ao Nang 9:00–10:00 AM and hit Phra Nang and Poda together late morning. The islands are busiest 11 AM – 2 PM.

How to dodge it:

- Book a sunrise or early-bird departure — the Phi Phi early-bird with Poda breakfast at sunrise is built around exactly this logic, reaching the beaches before the fleet.

- Take an afternoon/sunset departure instead: same islands, softer light, thinner crowds, and Chicken Island at sunset is genuinely lovely.

- Charter privately and run the circuit backwards — start at Poda while everyone else starts at Phra Nang.

- Go midweek, and avoid Thai public holidays entirely.

Consider the alternatives — the 4 Islands is not automatically the best boat day in Krabi:

- [Hong Islands](/thailand/krabi/hong-island-boat-tour) — an enclosed emerald lagoon and a superb beach, quieter than the 4-island circuit and, for many people, prettier.

- [Phi Phi and Maya Bay](/thailand/krabi/maya-bay-adventure-boat-tour) — bigger, more famous, a longer day; note Maya Bay's strict rules (no swimming in the bay, timed entry).

- [Ao Thalane mangrove kayaking](/thailand/krabi/ao-thalane-guided-tour) — the antidote: quiet, sheltered, no engine noise, and it runs when the open sea doesn't.

Skip the 4 Islands entirely if the forecast is bad (the day is miserable in rain and chop), or if you've already done Phi Phi and want variety rather than more beach-hopping. Otherwise, do it once — with the tide in your favour — and understand why it's the trip everyone books.