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Koh Phangan · Northwest coast · Mae Haad

Koh Ma — Sandbar Walk & Snorkelling

The Koh Ma sandbar and islet at low tide, Mae Haad, Koh Phangan

Koh Ma is the small, uninhabited islet you can see from Mae Haad beach on Koh Phangan's northwest corner — and at low tide you can walk straight to it. A natural sandbar connects the beach to the islet, the Gulf of Thailand on both sides no higher than your knees, clear enough to watch fish below your feet as you cross. It's the kind of thing that seems implausible until you're standing in the middle of the sea on a strip of sand.

Beyond the visual spectacle, Koh Ma has a practical draw that keeps snorkellers coming back: the reef around the islet is the best shore-entry snorkel site on the island. Protected marine zone status has kept the coral in better condition than most accessible spots in the Gulf. The fish are genuinely there — anemones, clownfish, parrotfish, reef fish in numbers that reward a slow drift rather than a quick dip.

This page covers the sandbar walk, the reef, how to get to Mae Haad, and what to know about guided tours if you'd rather go by boat. For the beach itself, the Koh Ma beach page has all the practical details including GeoCoordinates, and the full guide goes deeper on snorkel conditions by season.

What to know before you go

Mae Haad · Northwest coast · Tide-dependent

The sandbar walk — one of the island's iconic moments

At low tide, a natural sandbar rises from the seabed to connect Mae Haad beach to the small islet of Koh Ma — the sea lapping at knee height or less on both sides of the path. Walking it is one of those island moments that stays with you: the water is clear enough to see straight to the coral below, the islet's tree line sits at the end like a destination, and the whole crossing takes only a few minutes. At high tide the bar is completely submerged, so checking tide times before you visit is essential. Your accommodation, any local surf shop, or a quick search for 'Koh Phangan tide times' will give you the day's schedule. Aim for within two hours either side of low tide for the most dramatic sandbar.

Koh Ma beach page → Protected marine zone · Shore-entry · Best November to April

Snorkelling the Koh Ma reef

The reef running around the western and northwestern flanks of Koh Ma islet is widely regarded as the best shore-entry snorkelling on the whole island. The protected marine zone means the coral has stayed healthier than on more exposed or more visited stretches of coastline: anemones and clownfish, parrotfish picking at the coral in shallow water, shoals of smaller reef fish in dense formations. You don't need a boat — walk the sandbar at low tide and enter the water on the islet side, where the reef begins within a few fin-kicks of the shore. Bring your own mask and fins for the best experience; some guesthouses and beach shops near Mae Haad rent snorkel gear. The clearest conditions run through the dry season from roughly November to April.

Snorkelling on Koh Phangan → Northwest coast · Quiet · Sunset-facing

Mae Haad — the beach on the mainland side

Mae Haad is the beach you walk from to reach the sandbar, and it deserves more than just a transit stop. It's a quiet stretch of pale sand facing west — which means sunset light over the Gulf of Thailand and none of the crowds that pile into Haad Rin or even the more popular west-coast beaches. A handful of small resorts and guesthouses sit along the back of the beach, and there's a local seafood restaurant scene that has nothing to do with tourist traps: simple, fresh, inexpensive. The northwest location makes Mae Haad one of the island's calmer swimming beaches in high season, and the combination of the beach and the Koh Ma reef means you can easily fill a whole day here without leaving.

Mae Haad area guide → Half day · Snorkel gear included · Group and private

Guided tours and boat trips to Koh Ma

If you'd rather join an organised trip than navigate the tides independently, half-day boat tours to Koh Ma run from Mae Haad and from Chaloklum on the north coast. The boat-in approach lets you access the outer reef from the water side, often reaching different sections of coral than the sandbar walk, and most tours include snorkel gear, a guide and some time on the islet itself. This format suits people who aren't confident snorkelling independently or who want a structured half-day with multiple swim stops. Tours typically leave in the morning, return by early afternoon, and run smaller groups than the big-boat Ang Thong day trips — so you spend more time in the water and less time waiting on deck.

Boat trips guide →
Snorkel trips & stays

Tours and accommodation near Koh Ma

All snorkelling →
Koh Ma Snorkel & Sandbar Tour
Koh Ma Island
01 4.9

Koh Ma Snorkel & Sandbar Tour

Walk the famous sandbar and snorkel the island’s best reef.

from $75 per person View→
Mae Haad Beach & Koh Ma Sandbar
Northwest coast
02 4.5

Mae Haad Beach & Koh Ma Sandbar

Walk the sandbar to an islet at low tide — and snorkel the best reef on the west coast.

1,193 reviews View→
Koh Ma Beach Resort
Haad Salad
03 4.2

Koh Ma Beach Resort

An island resort stay on Koh Phangan.

1,665 reviews View→

Koh Ma guides

Guide

Koh Ma, Koh Phangan: Snorkelling Guide & Sandbar Walk

Koh Ma is the tiny islet just off Mae Haad beach that holds the best shore-entry snorkelling on Koh Phangan — live coral, clownfish and parrotfish reachable without a boat. At low tide you walk there across a natural sandbar. Here is how to make the most of it.

Read guide → Guide

Best Snorkelling Spots on Koh Phangan

Koh Phangan has more shore-entry snorkelling than its party reputation suggests — from the protected Koh Ma reef in the northwest to Coral Bay on the north coast and the fringing reef at Haad Salad. This guide ranks the best spots by quality, access and what to expect in the water.

Read guide → Guide

Mae Haad & Koh Ma, Koh Phangan: The Complete Area Guide

Mae Haad is where Koh Phangan's best shore-entry snorkelling lives. At low tide a natural sandbar lets you walk knee-deep to the Koh Ma islet and its healthy reef — no boat needed. This guide covers the sandbar, snorkelling, where to stay and how to get there.

Read guide → Guide

Diving & Snorkelling on Koh Phangan

Koh Phangan is the quiet gateway to Sail Rock, the Gulf of Thailand's best dive site, with a whale-shark pinnacle and a famous swim-through chimney. Here's the dive scene, day trips, PADI courses and the snorkelling spots that are worth your time.

Read guide → Guide

Island Hopping & Day Trips from Koh Phangan

Koh Phangan's central position in the Gulf of Thailand puts Koh Tao, Ang Thong Marine Park and Koh Samui all within a day-trip's reach. Here's where to go, what you'll find, and how to book each trip.

Read guide →

Koh Ma, answered

Can you walk to Koh Ma from the beach?
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Yes — at low tide a natural sandbar from the end of Mae Haad beach on the northwest coast lets you walk straight across to the islet, with water at knee height or less on both sides. At high tide the sandbar is submerged and Koh Ma becomes a proper island again. Check the day's low tide time before you go and aim to arrive within about two hours either side of it.
Is the snorkelling at Koh Ma good?
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It is generally considered the best shore-entry snorkelling on Koh Phangan. The reef wrapping the western flank of the islet is part of a protected marine zone, which has kept the coral healthier than most accessible reef spots on the island. You can expect clownfish in anemones, parrotfish, and dense shoals of smaller reef fish in relatively shallow water. Conditions are best from roughly November to April in the dry season.
How do I get to Mae Haad and Koh Ma?
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Mae Haad is on the northwest coast of Koh Phangan, roughly a 20-to-30-minute scooter ride from Thong Sala or a similar ride from Sri Thanu going north through Chaloklum. Shared songthaews run the main routes but are less frequent to the northwest; a scooter or private taxi gives you more flexibility. There is no boat service needed — you walk the sandbar from Mae Haad beach itself.
Is there anywhere to stay near Koh Ma?
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Yes — Koh Ma Beach Resort sits at the end of Mae Haad beach, as close as any accommodation gets to the sandbar. A handful of other guesthouses and small resorts line the beach and the road behind it. Staying here lets you time the sandbar walk and snorkel sessions around the tides without rushing from another part of the island.
Can you snorkel at Koh Ma without a tour?
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Completely. The sandbar walk is free, and once you're on the islet side you can enter the water independently. Bring your own mask and fins for the best experience — some guesthouses near Mae Haad rent snorkel gear. Joining a guided tour is a good option if you want access to the outer reef by boat, a guide to point out marine life, or a structured half-day with multiple swim stops. Independent snorkelling is easy for anyone reasonably comfortable in the water.
Is Koh Ma suitable for children?
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Yes, generally. The sandbar walk is shallow and gentle, and the reef snorkelling is in relatively calm, clear water that suits families. Children who are comfortable in the water with snorkel gear can enjoy the reef as much as adults — the clownfish and parrotfish are reliably present and easy to spot in the shallows. Be aware that water conditions vary: check that the sea is calm on the day, and supervise children carefully around the reef edge where the depth drops.
What is the best time of year to visit Koh Ma?
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The clearest water and calmest conditions run from roughly November through April, which is the Gulf of Thailand's dry season. The snorkelling reef is at its most visible and the sandbar walk is at its most photogenic during this window. In the wetter months (roughly May to October), conditions are more variable — the sea can be choppy and visibility lower, though the reef is still accessible on calm days.

More on the water

Snorkelling guide Diving Koh Ma beach page Mae Haad area Boat trips Ang Thong Marine Park Swimming spots Day trips
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