Short answer
Na Muang Waterfall has two falls in the south of Koh Samui: Na Muang 1, reached by a local road just off Route 4169, and the more scenic Na Muang 2, a walk of about 30 minutes further, which Wikivoyage says drops from around 79 metres. We could not confirm an entrance fee or opening hours. The rocks are slippery, and Thai media have reported several falls, some fatal, the latest in a report of 6 January 2026, so stay behind the warning signs and off the upper tiers. Wear shoes with grip.
Na Muang 1 and Na Muang 2: what you get
There are two falls. Wikivoyage's Koh Samui guide says a local road leads to Na Muang 1, just off Route 4169, and that a walk of about 30 minutes ends at the more scenic Na Muang 2, where purple rocks surround a stream that gushes from a height of around 79 metres. Wikipedia lists Na Muang among the island's notable waterfalls, with Hin Lad, Khun Si and others, and says many are popular tourist spots.
Be realistic about what it is. Wikivoyage says the main reason people come to Samui is the beaches, and calls the island's waterfalls, notably Na Muang, of minor interest. That is a fair guide: it is a pleasant cool stop on a day around the island, not a reason to cross the world. Wikivoyage's Lamai page places the nearby Wat Khunaram past Hua Thanon towards Na Mueang, so the falls lie south of Lamai.
Fees and opening hours: what we could not confirm
We could not find an official entrance fee or opening hours for Na Muang. The pages we opened do not state either. Wikivoyage lists the falls without a fee, and the Thaiger's reports describe warning signs along the route and restaurants near the base. Do not rely on a number from a blog: ask at the car park or at the nearest restaurant when you arrive.
Access can also change. Thai authorities have restricted some areas near the falls: the Thaiger reported in December 2023 that the area where a tourist died was a restricted area with warning signs and ropes. Treat any rope or sign as a closure, and leave extra time in case the path is shut.
Safety: what has happened and what officials say
Na Muang 2 has a record of accidents, and it is best to know it before you go. The Thaiger reported on 6 January 2026 that a 22-year-old French tourist died after slipping from the fifth tier on 5 January while taking selfies, and that the recovery took about two hours. It listed earlier accidents at the same fall: an Italian tourist injured in June 2024, a death in November 2024, and a British soldier seriously injured in May 2025.
The Thaiger also reported in June 2024 that rescuers spent over three hours carrying an injured Italian man down the falls, and that authorities had installed multiple warning signs at dangerous spots, especially at both Na Mueang falls. Wikipedia notes visitors at Samui's waterfalls have suffered severe injuries or death from slips and falls. Local officials, the Thaiger says, urge extreme caution when climbing, especially in wet or slippery conditions.
How to visit with care
Keep to the lower, marked areas and stay behind signs and ropes. Do not climb to the upper tiers, and do not take photographs on wet rock above a drop: the fatal fall the Thaiger reported in January 2026 happened while two visitors were taking selfies on the rocks. Wear shoes with grip, not sandals, and bring water. Wikivoyage's estimate for the walk from Na Muang 1 to Na Muang 2 is about 30 minutes.
Go with someone, tell your hotel where you are going, and keep your phone charged. Wikivoyage's emergency list for Samui includes 1155 and the Samui Rescue Foundation on 077 42 1444. The Thaiger reported in January 2026 that one earlier accident at Na Muang left a British soldier with a hospital bill above 4.4 million baht, so check that your travel insurance covers walking and swimming at waterfalls before you go.
Getting there without a motorbike scare
Wikipedia says the island's ring road is 51 km long, and Wikivoyage says Samui can be circled in a couple of hours by motorbike or car. Na Muang is just off Route 4169. A taxi or a hired car with a driver is the lower-risk way: Wikivoyage says that roads are hazardous with many large potholes, that motorbikes are somewhat risky, and that rental motorbikes are not insured, whatever the shop says.
If you do hire a motorbike, the UK Foreign Office says unregistered rental bikes are common in tourist areas and that you should not hand over your passport as a guarantee. Wikivoyage says to read the rental agreement and photograph existing scratches. Songthaews serve the ring road at fixed daytime fares, 20 to 80 baht according to Wikivoyage, but the falls are off the ring road, so you will need a short transfer.
Rain and season
Wikipedia says the heaviest rain on Samui falls from mid October to early December, so as of October 2026 the wet window is open. More rain means wetter rocks and a harder walk, and the Thaiger's January 2026 report records officials urging care in wet or slippery conditions. If it has rained heavily in the previous day or two, or the sky is dark over the hills, skip the climb to Na Muang 2 and stay at the lower fall.
Wikivoyage says the dry season gives the best weather in January and February. It is a safer time to walk to Na Muang 2, but check the signs on the day. Our guides to Koh Samui in November and Koh Samui in December cover what the weather does in those months, and things to do in Koh Samui lists other stops for a wet day.
If you want water without the rocks
Na Muang is not part of our tours, and we do not sell trips there. If you want a day in the water with the risk managed, our Pig Island tour is from $50 per person for the speedboat option, about 5 to 6 hours including hotel pickup. Mask, snorkel and a life jacket are included, non-swimmers can join in the shallows, and we confirm the pickup time on WhatsApp the day before.
The island day, from $65, starts at about 9:00 with the Heaven Gate viewpoint, lunch and the elephants before the boat. The tour is not wheelchair accessible and is not recommended for travellers with back problems or prone to seasickness. If the sea is unsafe, the operator moves the trip to another date or refunds it. A boat day and a waterfall visit work best on separate days.
Practical checklist
- Confirm the fee and access at the car park or nearest restaurant: we could not verify either from an official source.
- Wear shoes with grip, bring water and go in daylight, with someone else.
- Stay behind signs and ropes, and do not climb to the upper tiers or take photos on wet rock.
- Skip Na Muang 2 after heavy rain, from mid October to early December especially.
- Check that your travel insurance covers waterfall walks, and save the emergency numbers, including 1155.
Questions and answers
What is the difference between Na Muang 1 and 2?
Wikivoyage says a local road leads to Na Muang 1 off Route 4169, and that a walk of about 30 minutes reaches the more scenic Na Muang 2, which falls from around 79 metres.
Is there an entrance fee at Na Muang waterfall?
We could not find an official fee or opening hours. Ask at the car park or the nearest restaurant when you arrive, and treat ropes and signs as closures.
Is Na Muang waterfall dangerous?
The Thaiger has reported several accidents at Na Muang 2, including a fatal fall on 5 January 2026 while taking selfies. Officials have put up warning signs and urge caution on wet rocks.
Can you swim at Na Muang waterfall?
Wikivoyage does not say. Reports of falls describe slippery rocks, so stay in the lower areas, keep to marked paths and obey the signs. Ask locally what is open on the day.
When is the best time to visit Na Muang?
Wikipedia says the heaviest rain falls from mid October to early December, when rocks are wettest. Wikivoyage says January and February are the best months, but check conditions on the day.
Is Na Muang part of your Pig Island tour?
No. Our Pig Island tour is a boat day with snorkelling at Koh Tan and free time on Pig Island, from $50 per person, with hotel pickup. The island day adds Heaven Gate, lunch and the elephants.