Krabi’s islands are the kind of places that make you stop and stare. Turquoise water, white sand, dramatic limestone cliffs rising from the sea.
The best part? These seven islands are surprisingly easy to reach, even if you have never been to Thailand before.
Most are just a short boat ride from Ao Nang or Krabi Town, and we will show you exactly how to visit them later.
For now, let’s explore what makes each island worth your time. 😊
1. Koh Hong
a. Why This Island Stands Out
Koh Hong is the crown jewel of the northern islands. The name “Hong” means “room” in Thai, and once you see the hidden lagoon inside this island, you will understand why.
Imagine paddling through a narrow channel into a collapsed limestone chamber surrounded by towering cliffs.
The Thale Nai Lagoon is roughly 200 meters across, with emerald green water and white sand below. It feels like entering a secret world.
b. Best Things to See and Do
- Hike to the summit viewpoint via the 419-step trail for a panoramic view of islands and sea stretching to the horizon
- Kayak into the lagoon through the narrow 10-meter-wide channel on the north side
- Relax on Pelay Beach, a crescent of white sand protected by a limestone arm
- Snorkel off the main beach where healthy coral and reef fish gather near the rocky edges of the bay
- Swim in the calm shallows that feel like a natural pool, especially from November to April
- Spot wildlife like white-faced gibbons in the trees and monitor lizards on the beach
2. Koh Pak Bia (Pak Bia Island)
a. Why This Island Stands Out
Koh Pak Bia is a tiny gem that feels like nature decided to show off.
The island features a natural sandbar connecting a small limestone stack to the main islet, creating one of the most photogenic spots in the area.
But the real star here is the Mushroom Rock. This limestone formation has been carved by waves over thousands of years, leaving it with a narrow base and wider top. It looks exactly like a giant mushroom rising from the shallow water.
b. Best Things to See and Do
- Walk the low-tide sandbar when the sandy ridge fully emerges, letting you stroll between islands with the sea on both sides
- Photograph the Mushroom Rock from different angles as the light changes throughout the day
- Snorkel along the rocky edges near the limestone outcrops to spot small corals and tropical fish
- Relax on the quiet beach under shady trees, perfect for a peaceful picnic with a view
3. Koh Poda
a. Why This Island Stands Out
Koh Poda is postcard-perfect. White sand beaches wrap around most of the island, and a distinctive limestone rock tower rises from the sea just offshore.
Many visitors say this rock looks like a sailboat, and it creates one of Krabi’s most recognizable views.
Three sides of Poda have beaches, so there is plenty of space to spread out. The water is clear and calm, making it ideal for swimming.
b. Best Things to See and Do
- Swim at the eastern beach, the longest stretch and best for a relaxing dip
- Snorkel the coral reefs on the east and south sides where gentle slopes and good visibility reveal colorful marine life
- Photograph the “sailboat” rock offshore, which looks especially striking at sunrise
- Picnic under the shady trees behind the beach, but keep an eye on your food as curious monkeys sometimes wander by
4. Koh Tup (Tup Island)
a. Why This Island Stands Out
Koh Tup is one of the islands that forms Krabi’s famous Thale Waek, or “Separated Sea”. At low tide, white sandbars emerge and connect Koh Tup to neighboring Koh Mor, creating a walkway through the ocean.
Standing on that sandbar with turquoise water stretching out on both sides is one of those moments you will not forget. The sand only appears for a few hours, so timing is everything.
Koh Tup itself is small, but it offers beautiful views in every direction. You can see Koh Poda, Chicken Island, and the limestone karsts that dot the horizon.
b. Best Things to See and Do
- Walk across the sandbar to Koh Mor at low tide when soft white sand emerges and warm water laps at your ankles
- Take photos of the surreal experience of walking where water usually covers everything
- Wade and snorkel in the shallows where calm, clear water lets you spot small fish even in knee-deep water
- Climb the small hill on Koh Tup for an elevated panoramic view of the surrounding islands and sea
5. Koh Mor
a. Why This Island Stands Out
Koh Mor is Koh Tup’s smaller neighbor. On its own, it is just a tiny limestone outcrop with some vegetation.
But when the low-tide sandbar connects it to Koh Tup, the two islands become one continuous stretch of beach.
What makes Koh Mor special is its untouched feel. There are no facilities, no structures, just raw nature.
The rocky edges around Koh Mor have coral formations and attract reef fish, making it a quiet spot for snorkeling away from the crowds.
b. Best Things to See and Do
- Cross the sandbar from Koh Tup to experience the simple thrill of walking across the sea to reach a tiny island
- Snorkel off the rocky shore where slightly deeper water brings in more fish and healthier coral formations
- Swim in the shallow waters surrounding the sandbar
- Explore the tidal pools at low tide to discover sea anemones, crabs, and small fish hiding among the rocks
6. Koh Gai (Chicken Island)
a. Why This Island Stands Out
You will understand the name the moment you see it.
A tall limestone pinnacle on the southern tip of Koh Gai looks exactly like a chicken’s head and neck poking out of the sea. It is one of Krabi’s most photographed landmarks.
Beyond the funny rock formation, Chicken Island is serious about snorkeling.
The reefs on the northern and western sides are some of the best on the popular four-island route.
Clear water and abundant marine life make this a favorite for underwater exploration.
The island also has a small beach and shallow bay on the opposite side from the “head”, perfect for swimming when conditions are right.
b. Best Things to See and Do
- Snorkel the vibrant coral gardens on the eastern and northern sides where angelfish, clownfish, and sometimes reef sharks appear
- Swim in the sheltered bay where calm water feels like a natural pool
- Photograph the chicken-shaped rock from the boat as you approach or kayak close for a fun perspective
7. Koh Lao Lading
a. Why This Island Stands Out
Often marketed as “Paradise Island”, Koh Lao Lading has a fascinating backstory.
For decades, this island was closed to protect the valuable swiftlet nests harvested from its limestone caves.
The bamboo scaffolding you might spot on the cliffs is a remnant of that bird’s nest industry.
Today, the island welcomes visitors to a small, sheltered cove flanked by towering cliffs.
The natural harbor effect keeps the water calm and clear even when the open sea is choppy.
b. Best Things to See and Do
- Swim in the protected cove where wave action is minimal
- Snorkel along the cliff walls where hard corals and schooling fish thrive in the clear water
- Explore the dramatic limestone cliffs that rise straight from the water
- Enjoy the intimate setting of a beach only 50-60 meters long
Best Time to Visit These 7 Islands (Overall Guide)
Planning your trip around the weather makes a big difference. Here is what to expect throughout the year.
a. Month-by-Month Overview
November to February is peak season. Skies are clear, rain is rare, and the sea is calm. Underwater visibility is at its best, making this the ideal time for snorkeling. December through February sees the most tourists, but conditions are near-perfect.
March and April bring hotter temperatures. March stays mostly dry, but humidity increases. By late April, the southwest monsoon begins stirring, and you may see afternoon showers. Sea conditions are generally still good, especially early in the month.
May to October is monsoon season. Rain becomes frequent, and the sea can turn rough. Visibility underwater drops due to runoff and plankton. Tours still operate on calm days, but cancellations are more common. September is typically the rainiest month.
Late October and early November mark the transition back to dry season. Weather improves gradually, with longer sunny stretches and calmer seas as the month progresses.
b. Sea Conditions and Visibility
- Calm season (November to April): Flat seas, smooth boat rides, excellent visibility for snorkeling. This is when you will see vibrant coral colors and clear water.
- Monsoon season (May to October): Choppier waters, reduced visibility, and occasional strong currents. Red flags may appear on beaches when swimming is unsafe.
c. Shoulder Season Benefits
Visiting in early May or late October has its advantages:
- Fewer crowds mean beaches feel more peaceful and popular spots are easier to photograph
- Decent weather windows with many days still sunny, especially mornings before afternoon showers
The trade-off is less predictable conditions. Build flexibility into your schedule and have backup plans ready.
d. Important Notes
- No seasonal closures. Unlike some Thai marine parks, these seven islands stay open year-round. Access depends on daily weather conditions, not fixed dates.
- Safety first. If park rangers post red flags or local boat captains advise against going out, listen to them. Conditions can change quickly during monsoon months.
- Check forecasts. Especially from May to October, keep an eye on weather updates before booking day trips.
The Easiest Ways to Reach These Islands from Krabi
The great thing about visiting these islands from Krabi is how simple it is, even for first time travelers to Thailand.
There is no need to worry about ferry schedules or negotiating with boat operators.
All islands can be visited by joining a half day or full day boat tour, with everything arranged for you.
Below are some of the most popular island tour options from Krabi.
- Krabi/Ao Nang: Island Hopping Tour by Private Longtail Boat
- Krabi: Hong Islands Day Trip by Speedboat with Lunch
- Krabi: Premium 4-Island Day Trip by Longtail Boat with Lunch
- Krabi: Private Luxury Longtail Boat Island Hopping Tour
- From Krabi: Private Luxury Longtail Boat
- Krabi: 7 Islands Sunset Tour with Buffet Dinner & Snorkeling
- Krabi: Hong Island Longtail Boat & Kayak Tour w Buffet Lunch
