Cruising the Koh Chang Archipelago: Thailand's Hidden Island Paradise

The Koh Chang Archipelago, close to the Cambodian border in the Gulf of Thailand, is made up of more than 50 islands. Here you'll discover rainforest-covered mountains tumbling into the sea, deserted white sand beaches, thriving coral reefs, traditional fishing villages and welcoming family-run resorts that still feel authentically Thai.

It's one of those destinations where the sailing is relaxed, the anchorages are peaceful, and it's not unusual to have an entire bay virtually to yourself.

For sailors looking for a warm-water charter that's a little different, Koh Chang deserves serious consideration.

A Cruising Ground Rich in Nature and History

Part of the archipelago forms Mu Ko Chang National Marine Park, protecting extensive rainforest, coral reefs and marine life. Around 85% of Koh Chang itself remains covered in native forest, giving the islands a remarkably untouched feel despite the area's growing popularity.

The region also has a fascinating history. These waters once sat along important trading routes between China and Bangkok, while nearby Cambodia has influenced local culture for centuries. Stories of pirates, French colonial battles, wartime refugees and traditional fishing communities add another dimension to any visit beyond the beautiful beaches.

Koh Chang – The Natural Starting Point

As Thailand's second-largest island, Koh Chang combines excellent charter facilities with dramatic scenery.

Unlike many tropical destinations, development has largely remained concentrated on parts of the coastline, leaving much of the mountainous interior protected. Waterfalls cascade through dense rainforest, while mangrove forests and quiet fishing villages offer a glimpse into traditional island life.

For charterers, Koh Chang is an ideal base. Within a short sail you can reach numerous protected anchorages before continuing south through the island group.

The contrast between lively western beaches and the quieter eastern coastline means there's something for every crew, whether you're seeking restaurants, nature walks or simply a peaceful overnight anchorage.

Photo credits:
Island Spirit Sailing
Ragnar Vorel on Unsplash

Koh Wai – A Taste of the Tropics

Only a short sail south lies Koh Wai, often the first island visited after departing Koh Chang.

This small island delivers exactly what many people imagine when dreaming of Thailand: powdery white beaches, leaning coconut palms and crystal-clear water.

There are only a handful of resorts here, allowing the island to retain a wonderfully relaxed atmosphere. Excellent snorkelling can be enjoyed directly from many anchorages, making it an ideal first overnight stop before exploring further into the archipelago.

Koh Mak – Relaxed Island Living

Koh Mak feels distinctly different.

Privately owned by descendants of five long-established island families, it has developed slowly and thoughtfully, avoiding the high-rise tourism found elsewhere in Thailand. The result is an island with boutique resorts, quiet roads, art galleries, excellent cafés and an easy-going atmosphere that's particularly popular with returning visitors.

For yacht crews, Koh Mak offers plenty of reasons to linger.

Spend the afternoon paddleboarding over clear sand flats, enjoy sunset drinks at Cococape Pier Bar, sample excellent seafood at local restaurants, or simply relax on one of the island's uncrowded beaches. Fresh bakeries, small markets and provisioning options also make it a practical stop during a longer cruise.

Nearby Koh Kham is well worth a visit for its striking white sandbar, turquoise water and snorkelling, while tiny Koh Rayang Nok provides another peaceful escape away from the busier bays.

Koh Rang Marine National Park – Snorkelling at its Best

Many charterers consider Koh Rang the highlight of the entire cruising area.

Protected within the National Marine Park, the islands are renowned for vibrant coral reefs, clear water and abundant marine life. Mooring buoys allow easy access to many snorkelling sites, while overnight anchorages on the western side provide shelter during the northeast season.

Expect colourful reef fish, healthy coral gardens and excellent visibility for both snorkellers and divers.

The park also offers short walking trails, secluded beaches and opportunities to explore by kayak or paddleboard, making it a rewarding stop for active crews.

Ko Maisi Yai & Ko Maisi Lek – Hidden Gems of the Archipelago

Tucked away in the southeastern corner of the Koh Chang archipelago, Ko Maisi Yai and Ko Maisi Lek are two of those places that remind you why travelling by yacht is so special.

Far removed from the busier beaches, these sister islands offer an extraordinary sense of peace. There are no bustling resorts or lively waterfronts—just quiet fishing communities, palm-fringed bays and the feeling that you've discovered somewhere few visitors ever reach.

The sheltered bays make ideal lunch or overnight stops, with good holding in sand and calm waters that invite a leisurely swim before continuing your cruise. The surrounding reefs and clear water provide excellent snorkelling, while the lack of development means the natural beauty remains largely untouched.

Ko Maisi Lek also has an intriguing slice of history. The island was once home to a royal-appointed Officer of Chinese Affairs, and the remains of an old plantation house still stand among the trees. Its mosaic floors, dating from the King Rama V era, offer a fascinating glimpse into the island's past and reward those who take the time to explore ashore.

For many charterers the greatest attraction is simply the silence. It's a place where dropping anchor, watching the sun sink below the horizon and listening to little more than the gentle lapping of water against the hull becomes one of the most memorable moments of the entire voyage.

Koh Kut – Thailand Before Mass Tourism

If one island captures the imagination, it's Koh Kut.

As the southernmost major island in eastern Thailand, Koh Kut remains refreshingly undeveloped. Visitors arrive primarily by ferry or yacht, helping preserve the island's relaxed atmosphere and traditional way of life.

Beautiful anchorages line the west coast, each backed by coconut palms and boutique resorts hidden amongst the trees.

One of the island's great pleasures is exploring ashore. Dinghy up peaceful rivers to waterfalls, wander through fishing villages, enjoy fresh seafood overlooking the beach or simply spend an afternoon in a hammock listening to the sound of the surf.

Captain Hook's Bay is a favourite with visiting yachts thanks to its excellent protection, white sand beach and welcoming resort, while Ao Bang Bao provides another idyllic overnight anchorage. Further south, Ao Phrao offers a long palm-fringed beach, relaxed cafés and an authentic glimpse of island life.

The eastern side reveals yet another face of Koh Kut, where traditional fishing villages continue much as they have for generations. Visiting respectfully provides an insight into a community that remains closely connected to the sea.

Easy Sailing for Relaxed Holidays

One of the biggest attractions of the Koh Chang island group is simply how enjoyable it is to cruise.

Distances between islands are short, allowing plenty of time for swimming, snorkelling and exploring ashore rather than spending long days under sail. Protected anchorages are plentiful, making this an excellent destination for families, couples and anyone wanting a more leisurely charter.

The combination of warm tropical water, reliable seasonal weather and easy day sails creates exactly the sort of holiday many sailors are searching for.

Why We Like Koh Chang

After more than 30 years helping clients choose sailing destinations around the world, we've found that many of the most memorable charters happen away from the busiest cruising grounds.

Koh Chang offers that rare balance of beautiful sailing, genuine local culture and peaceful anchorages without sacrificing comfort. Boutique resorts, excellent Thai cuisine, friendly hospitality and outstanding natural scenery combine to create a destination that's every bit as rewarding as Thailand's better-known charter regions.

Easy Sailing for Relaxed Holidays

One of the biggest attractions of the Koh Chang region is simply how enjoyable it is to cruise.

Distances between islands are short, allowing plenty of time for swimming, snorkelling and exploring ashore rather than spending long days under sail. Protected anchorages are plentiful, making this an excellent destination for families, couples and anyone wanting a more leisurely charter.

The combination of warm tropical water, reliable seasonal weather and easy day sails creates exactly the sort of holiday many sailors are searching for.

Why We Like Koh Chang
After more than 30 years helping clients choose sailing destinations around the world, we've found that many of the most memorable charters happen away from the busiest cruising grounds.

Koh Chang offers that rare balance of beautiful sailing, genuine local culture and peaceful anchorages without sacrificing comfort. Boutique resorts, excellent Thai cuisine, friendly hospitality and outstanding natural scenery combine to create a destination that's every bit as rewarding as Thailand's better-known charter regions.

Some places are simply made for slowing down. The Koh Chang Archipelago invites you to sail at nature's pace, wake to deserted beaches, dive into warm tropical waters and discover a side of Thailand that still feels beautifully untouched