Handpicked experience · Phi Phi Islands
Phi Phi Islands, Thailand
Sand that has passed through a fish, a lagoon left behind when a cave roof fell in, and cliffs undercut at the waterline by things that are alive.
Several stops rather than one long stay in one bay
Shallow snorkelling that works for first-timers
Cliff passages visible from the boat all day
White sand with an unexpectedly biological origin
Someone else reading the sea while you look at it
A full day among the Phi Phi islands by boat: several snorkelling stops in shallow water, beach time on white sand, passages beneath limestone cliffs, and a crew handling the navigation and the water.
Eight hours with multiple stops, most of them short. Nothing about the day rewards hurrying, and the gaps between stops are short enough that you never really settle into the boat.
The white sand here is not eroded rock. It is coral and shell, and a large share of it has passed through a fish. Parrotfish scrape algae off coral with beaked teeth, grind the calcium carbonate in their throats and excrete it as fine white sand — a single large parrotfish can produce hundreds of kilograms a year. The beaches you land on are, in a literal sense, a by-product of the reef being eaten.
One of the stops is an enclosed basin ringed by walls tens of metres high, reached through a narrow gap. It was formed when a cave system in the limestone collapsed and the sea flooded what was left. Because it is sheltered from swell and floored with pale sand in shallow water, the colour inside is completely unlike the open sea a hundred metres away.
Look at the base of any limestone island here and you will see the rock notched inward at the waterline, so the cliffs overhang their own footings. That notch is cut by living things — sponges, molluscs, urchins and algae grinding and dissolving the stone in the narrow band that is wet at every tide. Biology erodes this rock far faster than weather does, and the result is an archipelago of islands standing on stems.
Blacktip reef sharks are common in the shallow sandy areas, particularly early in the day. They are small, wary and entirely uninterested in swimmers, and the sight of a dorsal fin in half a metre of water is the most reliably misread moment of any Thai island trip.
Carry local currency; the islands run on cash and card readers are thin on the ground. Reef-safe sunscreen makes a genuine difference in bays this enclosed. If you are prone to seasickness, take something before boarding rather than after — the crossings between islands are short but rarely flat.
Open it to pick a date and work out the price.
What the fare covers, and what to budget for separately.
The practical detail, and the answers people actually ask for.
Yes. The stops are chosen for shallow, calm water rather than depth, and life jackets are provided as standard.
Because it is ground coral rather than eroded rock, and much of it has passed through parrotfish, which scrape coral, grind the carbonate and excrete fine white sand — hundreds of kilos a year from a single large fish.
A cave system in the limestone collapsed and the sea flooded what was left, leaving a shallow basin ringed by high walls with a narrow entrance.
Living things cut the notch. Sponges, molluscs, urchins and algae grind and dissolve the rock in the band that stays wet at every tide, far faster than weather erodes it.
Blacktip reef sharks are small, cautious and uninterested in people. Seeing one in shallow water is common early in the day and is the least alarming thing it appears to be.
Yes, some. National park contributions can be collected at certain sites and are not always covered by the booking.
Take something before boarding rather than once you are aboard. The crossings between islands are short but the water is rarely flat.