Koh Chang, Thailand’s second-largest island, is often overshadowed by its more famous southern neighbours like Phuket or Koh Samui. But for those in the know, this elephant-shaped island in the Gulf of Thailand is the nation’s undisputed king of jungle adventure. While the west coast offers beautiful beaches and stunning sunsets, the island’s mountainous, forest-covered interior—protected as part of the Mu Ko Chang National Park—is a realm of ancient trees, hidden waterfalls, and trails that lead you deep into the heart of tropical wilderness .
For the nature lover and trekking enthusiast, Koh Chang is a paradise. It offers a remarkable spectrum of experiences: from easy, family-friendly strolls through bamboo groves to multi-day survival treks that challenge your physical limits. The island’s waterfalls are not just scenic stops; they are the destinations that reward your efforts, offering cool, refreshing pools to swim in after a long hike.
This guide will take you through the best waterfall hikes and jungle trekking itineraries on Koh Chang, helping you plan the perfect adventure, whether you have just a day or a full week to explore.
Part 1: Preparing for the Jungle – Essential Tips Before You Trek
Before we dive into the trails, a word on preparation. Trekking in a tropical rainforest is different from hiking in temperate climates. The humidity is high, the sun is intense, and the terrain can be slippery.
- Footwear is Crucial: Leave the flip-flops at the beach. You’ll need proper trekking shoes or at least sturdy trainers with good grip. Many trails involve stream crossings and slippery rocks .
- Stay Hydrated: Carry at least 1.5 litres of water per person for shorter trips, and more for longer treks .
- Insect Repellent: The jungle is home to mosquitoes. A good repellent is non-negotiable .
- Timing: Start early. The best time to trek is in the morning when temperatures are cooler and the trails are less crowded. The rainy season (May to October) makes waterfalls more spectacular, but trails become muddier and more challenging .
- Respect the Rules: Many trails are within the national park, which charges an entrance fee (usually 200-300 THB for adults). This fee often covers access to multiple waterfalls, so keep your ticket . Also, be aware of signs: some trails may be closed for conservation or safety reasons, and fines for trespassing can be as high as 100,000 baht .
Part 2: The Waterfall Wonders – Koh Chang’s Liquid Gems
The island’s waterfalls are the crown jewels of its trekking routes. Each has its own character, level of accessibility, and charm.
1. Khlong Phlu Waterfall: The Accessible Classic
- Difficulty: Easy
- Hike Time: 15-20 minutes
- Entrance Fee: 200 THB
Located near the popular Khlong Phrao Beach on the west coast, Khlong Phlu is the island’s most famous and easily accessible waterfall . The trail is a well-maintained, 600-metre nature path that winds through lush tropical forest . It’s perfect for families and beginners. The reward is a stunning 20-metre high cascade plunging into a large, deep natural pool perfect for a refreshing swim . Arrive early in the morning to beat the tour groups and have this magical spot almost to yourself.
2. Than Mayom Waterfall: The Royal Cascade
- Difficulty: Easy to Moderate
- Hike Time: 30 minutes
- Entrance Fee: 200 THB
On the island’s quieter eastern side, Than Mayom holds a special historical significance. It’s known as the “Royal Waterfall” because it was visited by two Thai kings, Rama V and Rama VII, who left their initials carved into the stone . The waterfall flows over smooth rock slabs into several tiers, creating natural pools ideal for swimming. The trail to reach it is a bit more challenging than Khlong Phlu but still manageable for most. It’s less crowded than its western counterpart, offering a more serene experience .
3. Khiri Phet Waterfall: The Adventurer’s Prize
- Difficulty: Moderate to Challenging
- Hike Time: 1 hour
- Entrance Fee: 40 THB
For those seeking a true jungle adventure, Khiri Phet is the destination. Located in the southeast of the island near Salak Phet, this multi-tiered waterfall is the least travelled of the major falls . The route involves walking through dense jungle and crossing small streams . It’s a quieter, more rugged trail that makes you feel like a true explorer. The waterfall itself is beautiful, surrounded by lush vegetation, and the low entrance fee reflects its off-the-beaten-path nature.
4. Kai Bae Waterfall: The Hidden Gem
- Difficulty: Moderate
- Hike Time: 15-20 minutes
- Entrance Fee: 40 THB (paid to a private landowner)
Located inland from the bustling Kai Bae Beach, this waterfall is a secret gem. A short but sometimes tricky 500-metre walk along a riverbank leads you to a surprisingly powerful waterfall, especially impressive in the rainy season . Because it’s less known and requires a small fee paid to a landowner rather than the national park, it sees far fewer visitors. You have a high chance of having the place, including a small swimming pond at the base, all to yourself .
Part 3: Jungle Trekking Itineraries – From a Half-Day to a Week in the Wild
Now that you know the key destinations, here are suggested itineraries to structure your exploration, from a quick visit to an immersive jungle experience.
Itinerary 1: The Easy Explorer (1 Day)
Perfect for families or those who want a taste of the jungle without breaking a sweat. This itinerary focuses on the easily accessible west coast.
- Morning (9:00 AM): Start at Khlong Phlu Waterfall. Arrive early, enjoy the easy walk, and take a long, refreshing swim in the pool.
- Lunch: Head to a nearby beachfront restaurant on Khlong Phrao Beach for some fresh seafood.
- Afternoon (2:00 PM): Drive or take a taxi to the Kai Bae Viewpoint. This isn’t a jungle trek, but a short, paved walk up to a spectacular rooftop viewpoint overlooking the island and the archipelago . It’s the perfect low-effort, high-reward afternoon activity.
- Evening: Catch the sunset at a west coast beach like White Sand Beach or Lonely Beach .
Itinerary 2: The East-West Waterfall Circuit (2 Days)
This itinerary uses a combination of the island’s main road and short treks to experience both coasts.
- Day 1 (West Coast): Follow the “Easy Explorer” itinerary to get acquainted with the island.
- Day 2 (East Coast Adventure):
- Morning (9:00 AM): Drive across the island to the east coast. Your first stop is Than Mayom Waterfall. Hike to the falls and enjoy the serene, royal atmosphere.
- Lunch: Head south to the fishing village of Bang Bao. Walk the long pier, browse the souvenir shops, and have lunch at one of the stilted restaurants over the water .
- Afternoon (2:00 PM): From Bang Bao, continue your journey north or south? Actually, from here, you can drive further south to Salak Phet, the oldest fishing village on the island . Explore the village, see the beautiful temple, and enjoy the views of the yacht-dotted bay. This day involves less hiking and more cultural exploration, providing a perfect balance to the first day.
Itinerary 3: The Conqueror’s Challenge – Summit Khao Laem (2 Days / 1 Night)
This is for the serious trekker. This itinerary involves summiting the island’s highest peak, Khao Laem, and camping overnight. It’s an experience best done with a local guide like Sit from Koh Chang Adventure .
- Day 1: The Ascent
- 9:30 AM: Meet your guide in Salak Phet and begin your journey. You’ll walk through the deep jungle, learning about survival skills like how to drink water from giant lianas and find edible plants .
- Afternoon: You’ll trek for several hours, ascending through ancient forests. If you’re lucky, you might spot hornbills or other exotic wildlife.
- 3:00 PM: Reach the summit of Khao Laem (744 metres). You’ll set up camp and wait for the sun to set over the mountains and Salak Phet Bay.
- Night: Spend the night around a bonfire under a canopy of stars, listening to your guide’s stories of the island .
- Day 2: The Descent and Reward
- 5:30 AM: Wake up early to witness the magical sunrise from the summit as the island awakens .
- Morning: Begin your descent back through the jungle.
- Late Morning (11:00 AM): The trek concludes with the ultimate reward: a swim in the cool, refreshing waters of Khiri Phet Waterfall before being dropped back at the temple in Salak Phet .
Itinerary 4: The 5-Day Deep Dive (Full Immersion)
For the ultimate Koh Chang adventure, combine multiple elements. This is a more strenuous version of itineraries found on travel planning sites .
- Day 1: Acclimatize with the Khlong Phlu hike and afternoon kayaking through the mangroves at Salak Khok Bay.
- Day 2: Take on the Salak Phet – Khiri Phet trail, a challenging 7.2km out-and-back hike with significant elevation gain . This is a tough day, but you’ll be rewarded with stunning viewpoints and the beautiful waterfall.
- Day 3: Recover with the easier walk to Than Mayom, followed by a relaxing afternoon at Long Beach.
- Day 4: Dedicate the day to a guided hike up Khao Laem. It’s another challenging day, so prepare accordingly.
- Day 5: Celebrate your adventures with a snorkelling trip to the nearby islands of Koh Rang, Koh Yak, and Koh Wai to cool off in the crystal-clear waters .
Part 4: Guided Tours vs. Going Solo
For the easy waterfall walks (Khlong Phlu, Than Mayom), you don’t need a guide. The trails are well-marked, and you can easily rent a scooter or hire a songthaew (shared taxi) to get there .
However, for the more challenging treks like Khao Laem or the full Khiri Phet circuit, a local guide is highly recommended and sometimes essential. Guides like Sit from Koh Chang Adventure offer more than just navigation; they provide invaluable knowledge about the flora, fauna, and survival techniques of the jungle, transforming a simple hike into an immersive educational experience . They also know the safest routes and can navigate trail closures or overgrown paths that might be impassable for solo trekkers .
For those who prefer a structured tour, the “Around Koh Chang” joining tour is an excellent value-for-money option. For 1,000 THB, you get a full day (8:30 AM – 3:30 PM) in a songthaew visiting up to nine attractions, including viewpoints, Than Mayom and Khlong Phlu waterfalls, and the Bang Bao fishing village, with lunch included .
Conclusion: The Wild Heart of Koh Chang
Koh Chang’s beauty extends far beyond its sandy shores. Its true magic lies inland, in the emerald shadows of its ancient rainforest, the thunderous roar of its waterfalls, and the panoramic silence from its misty peaks. Whether you choose a gentle stroll to a swimming hole or a multi-day expedition to the summit, the island’s wild heart is waiting to be discovered. So pack your boots, grab your water bottle, and head into the jungle—adventure awaits.