Koh Hong: Discover Krabi's Hidden Emerald Lagoon
Koh Hong translates to “Emerald Island,” and the name is perfectly apt. This island features a completely enclosed freshwater lagoon surrounded by dramatic limestone cliffs—a natural wonder that seems almost mythical.
The experience of paddling through the narrow coral passage into the lagoon and finding yourself surrounded by 200-meter cliff faces with no exit visible is surreal. You’ve entered a hidden world.
Why Koh Hong?
The Magical Lagoon
The lagoon is the heart of Koh Hong’s appeal. It’s freshwater, enclosed by coral formations and limestone cliffs, and creates a sense of being in a secret place. The water is incredibly calm and peaceful.
Paddling into the lagoon is an adventure in itself. You navigate through a narrow passage in the coral reef, and suddenly you’re in this enclosed world with the sky above and cliffs surrounding you.
Dramatic Natural Setting
The limestone cliffs rising around the lagoon create an almost otherworldly setting. The rock formations show geological patterns and colors—striations, vegetation, natural weathering patterns.
It’s one of the most visually dramatic locations in Krabi.
Snorkeling and Marine Life
The coral passage and outer reefs host diverse marine life. Snorkeling here reveals healthy coral ecosystems and colorful fish.
Unique Experience
Koh Hong offers an experience you can’t get anywhere else. It’s not just a beach; it’s an enclosed natural wonder that creates a sense of discovery and adventure.
What You’ll Experience at the Koh Hong
What You'll Experience
The Paddle Through the Coral Passage
This is the signature Koh Hong experience. You’ll paddle (or be paddled on a canoe) through the narrow coral passage. It’s not dangerous, but it is thrilling—the passage is shallow and narrow, creating a sense of entering a hidden realm.
What You'll Experience
Time in the Lagoon
Once inside the lagoon, time feels different. The cliffs rise around you. The water is still and reflective. You can swim, float, or simply sit and absorb the surreal beauty.
Outer Reef Snorkeling
Outside the lagoon, you’ll snorkel the outer reefs where marine life is abundant.
Who and When to visit Koh Hong
Best Time to Visit Koh Hong
High Season (Nov-Feb):
Calm seas ideal for lagoon paddling.
Shoulder Season (Mar-May):
Excellent, fewer tourists.
Rainy Season (Jun-Oct):
Possible, but seas can be rough.
Who Should Visit
Koh Hong works for adventurous travelers, photographers, snorkelers, and anyone seeking unique experiences. If you're uncomfortable with confined spaces or narrow passages, discuss with guides before booking.What Our Customers Say
Excellent
4.9 based on 4291 reviews
Amazing boat trip
Great day out, stopped to watch the sunrise on the way just magical! Dee and the team were great, she helped to encourage my youngest to go snorkelling which he loved Saw monkeys at monkey island, beautiful Maya bay with sharks, great swims at Phi Phi and a lovely secluded beach with a beer in hand! Lots of delicious fruit, spring rolls, cold drinks plus an awesome buffet lunch back at the marina Definitely worth an early start to the day, thank you team
The best day
We really enjoyed our day visiting the Phi Phi islands, Dee was brilliant and all the crew on Simba 8 as well as the staff at the SOHO club! It was very special to see the sunrise and all of the activities were amazing and well planned. Everything ran smoothly and the fresh fruit and drinks provided were a nice touch. The experience felt very exclusive and never rushed!
Fantastic day - stops - beat crowds
Amazing day. All stops were fantastic. Definitely worth beating the crowds. Lunch excellent. Super speed boat (not luxury). Great guide Harry.
Subscribe for latest update about Travelling
Subscribe to receive updates about new tours, special offers, and travel tips for Thailand.