The Na Muang Waterfall is the most spectacular natural attraction on Koh Samui — two waterfalls hidden in the jungle-covered heart of the island, both free to visit, both with natural swimming pools, and both reachable in under 30 minutes from any beach. This complete 2026 guide covers everything you need: how Na Muang 1 and Na Muang 2 differ, the entrance fee reality, how to get there, when to go for the most water, and how to combine the waterfalls with the island's best jungle adventure.
There are two Na Muang waterfalls in Koh Samui's interior. Na Muang 1 (18m) is a 5-minute flat walk from the car park with a large natural swimming pool — easy for everyone. Na Muang 2 (80m) is the taller, more dramatic one, reached by a steep 20–30 minute jungle hike. Entry to both is free — you only pay a small parking fee. They're at their most powerful from October to December, and roughly 20–30 minutes by car or scooter from Chaweng, Lamai or Bophut.
No bus or songthaew reaches the waterfalls, so most visitors either rent a vehicle or join a tour. The island's legendary 4×4 jungle safari runs straight through the Na Muang valley — waterfalls, mountain viewpoints, a monkey show and lunch, with hotel pickup included. Free cancellation.
Na Muang Waterfall 1 vs Na Muang 2 — Which to Visit?
This is the single most useful thing to understand before you go. The two Na Muang waterfall sites share the same access road but offer completely different experiences:
| Na Muang 1 | Na Muang 2 | |
|---|---|---|
| Height | ~18 metres | ~80 metres |
| Access | 5-min flat walk from car park | 20–30 min steep jungle hike |
| Difficulty | ⭐ Very easy — all ages | ⭐⭐⭐ Moderate — proper shoes needed |
| Swimming | ✅ Large natural pool | ⚠️ Smaller pools, rockier |
| Crowds | Busier — tour buses stop here | Much quieter |
| Best for | Families · Easy swim · Quick visit | Hikers · Photos · Fewer people |
| Entry | Free | Free |
If you have limited time or you're with young children, go to Na Muang 1 — the swimming pool at the base is genuinely lovely and it takes five minutes to reach. If you're reasonably fit and want the more dramatic waterfall with far fewer people, make the hike to Na Muang 2 — at 80 metres it's the biggest waterfall on Koh Samui and the jungle walk is part of the experience. Ideally, do both: Na Muang 1 first for a swim, then the hike up to Na Muang 2.
Na Muang Waterfall Entrance Fee — Is It Free?
Yes — entry to the Na Muang waterfall is completely free. There is no official entrance fee for either Na Muang 1 or Na Muang 2. The only cost you'll encounter is a small parking fee (typically 20–50 THB for a scooter or car) at the car park by the access road.
Occasionally, touts near the entrance may try to charge visitors an “entrance fee”, offer a paid buggy ride to the falls, or claim the walk is closed and only accessible by their vehicle. None of this is required. Both waterfalls are free public access and both are reachable on foot. Pay only the official parking fee, and walk in — Na Muang 1 is a genuinely short, flat, easy walk.
The waterfalls cost nothing, so the only real expense of the day is transport. With no bus or songthaew serving the interior, your options are a rental car, a scooter or a guided tour. A car for the day usually works out cheaper than two taxi runs — and lets you combine Na Muang with the elephant sanctuaries and viewpoints nearby.
How to Get to Na Muang Waterfall
The Na Muang waterfall sits in Koh Samui's mountainous interior, roughly in the middle of the island, accessed by a road heading north from the south coast ring road (Route 4169). It's not served by songthaews or public transport, so you'll need your own wheels or an organised tour.
| From | Distance | Drive Time | Taxi Price |
|---|---|---|---|
| Chaweng | ~14 km | 20–25 min | 300–400 THB |
| Lamai | ~10 km | 15–20 min | 250–350 THB |
| Bophut | ~18 km | 25–30 min | 350–450 THB |
| Maenam | ~20 km | 30 min | 400–500 THB |
| Nathon Pier | ~17 km | 25 min | 350–450 THB |
A scooter handles the road to Na Muang easily — the access road is paved and manageable, though it does climb. It's the cheapest way to reach the falls and park right at the entrance. Message us and we'll sort a trusted local scooter delivered to your hotel.
The Na Muang 2 Hike — What to Expect
The walk up to Na Muang waterfall 2 is the island's best short jungle hike — and the main reason to visit. From the Na Muang 1 area, a marked trail climbs through dense rainforest for roughly 20–30 minutes, crossing streams and climbing rocky sections before opening out at the base of the 80-metre cascade.
- Distance — roughly 1.2 km each way from the lower car park.
- Time — 20–30 minutes up, a little less coming down.
- Difficulty — moderate. Steep in places, rocky, and slippery after rain.
- Shoes — trainers or hiking sandals essential. Flip-flops are a bad idea on the wet rocks.
- Water — bring a bottle; it's humid in the jungle even when it's not hot.
At around 80 metres, Na Muang 2 is the tallest waterfall in Koh Samui — dramatically higher than Na Muang 1 and far quieter, because most tour groups stop at the lower falls. The jungle hike up is genuinely enjoyable, and arriving at the base of an 80-metre cascade with hardly anyone around is one of the island's best moments. Go in the morning for the best light and the coolest walking conditions.
Best Time to Visit Na Muang Waterfall
Waterfall volume varies enormously by season — and this makes a big difference to the experience at Na Muang:
| Season | Months | Water Volume | Verdict |
|---|---|---|---|
| Rainy season | Oct–Dec | 💦💦💦 Maximum | Most spectacular — but slippery trails |
| Early dry season | Jan–Feb | 💦💦 Good | Best balance — good flow, safe trails |
| Late dry season | Mar–May | 💦 Reduced | Can be a trickle by April–May |
| Transition | Jun–Sep | 💦💦 Moderate | Decent flow, fewer crowds |
The sweet spot is January to February: the rainy season has filled the falls but the trails have dried out enough to be safe. If you visit in April or May, be aware the waterfall can slow to a trickle after months without rain — still a pleasant jungle walk, but don't expect a thundering cascade. For sheer power, October to December is unbeatable, just take extra care on the wet rocks.
Whatever the season, arrive before 10am. The tour buses reach Na Muang 1 mid-morning and the pool gets busy. Early visitors often have the place almost to themselves — and the light through the jungle canopy is best in the morning.
October to February is when Na Muang is at its most powerful — and also when the interior tracks are muddiest. If you'd rather not drive slippery mountain roads yourself, a guided 4×4 safari handles the driving and takes you to viewpoints an ordinary car can't reach. Book with free cancellation in case of heavy rain.
Na Muang Safari — Seeing the Waterfall by 4×4
The Na Muang valley is also the heart of Koh Samui's jungle safari country. The famous 4×4 safari tours run through this exact area, combining the waterfalls with steep mountain viewpoints, local farms and jungle tracks that ordinary vehicles simply cannot reach. If you want to see far more of the interior than the waterfall alone — and skip the driving and parking — a jungle safari is the best way to do it.
The island's legendary full-day 4×4 safari runs right through the Na Muang valley — waterfalls, mountain viewpoints, a monkey show, local farms and lunch, with hotel pickup included. The easiest way to see the interior without driving yourself. Free cancellation.
Combine Na Muang with an Elephant Sanctuary
Koh Samui's ethical elephant sanctuaries are located in the same interior valley as the Na Muang waterfall — just a few minutes' drive apart. This makes the perfect half-day combination: feed and walk with rescued elephants in the morning, then cool off in the waterfall pool afterwards. Many organised tours combine exactly these two stops.
The sanctuaries near Na Muang are strictly no-riding — feeding, jungle walks and mud spa only. It's one of the best days out on the island when paired with the waterfalls.
Best Waterfalls in Koh Samui — How Na Muang Compares
Na Muang is the best-known waterfall on the island, but it isn't the only one. Here's how Koh Samui's waterfalls compare:
| Waterfall | Height | Access | Swimming | Verdict |
|---|---|---|---|---|
| Na Muang 1 | ~18 m | 5-min walk | ✅ Excellent pool | Best for easy access & swimming |
| Na Muang 2 | ~80 m | 20–30 min hike | ⚠️ Limited | Biggest & most dramatic |
| Hin Lad Waterfall | ~20 m | 30–45 min hike | ✅ Small pools | Quiet · Near Nathon · Jungle temple |
| Secret Falls (Tar Nim) | Small | Short walk · Paid | ⚠️ Limited | Magic Garden combo · Views |
For most visitors, Na Muang is the best waterfall in Koh Samui — the combination of easy access at Na Muang 1, the dramatic 80-metre cascade at Na Muang 2, free entry and a genuine jungle setting is unmatched elsewhere on the island. Hin Lad is a good quieter alternative if you're based near Nathon.
What to Bring to Na Muang Waterfall
- Swimwear & towel — the pool at Na Muang 1 is made for swimming.
- Trainers or hiking sandals — essential if you're doing the Na Muang 2 hike; the rocks are slippery.
- Water bottle — the jungle is humid and there's limited shade on the climb.
- Cash — for the parking fee and the drink stalls near the entrance.
- Waterproof phone case or dry bag — for photos at the falls.
- Mosquito repellent — you're in dense jungle beside running water.
- A change of clothes — you will get wet, one way or another.
Explore Koh Samui's Interior
Waterfalls · Jungle viewpoints · Elephants · 4×4 safari · Free cancellation
FAQ — Na Muang Waterfall
Is there an entrance fee for Na Muang waterfall?
No — entry to both Na Muang 1 and Na Muang 2 is completely free. The only cost is a small parking fee of around 20–50 THB for a scooter or car. Be wary of anyone at the entrance claiming an official “entrance fee” or insisting you need a paid vehicle to reach the falls — both waterfalls are free public access and reachable on foot.
Which is better, Na Muang 1 or Na Muang 2?
Na Muang 1 is better for easy access and swimming — it's a 5-minute flat walk with a large natural pool, suitable for all ages. Na Muang 2 is the taller, more dramatic waterfall at around 80 metres, but requires a steep 20–30 minute jungle hike. If you can manage the walk, do both: swim at Na Muang 1, then hike up to Na Muang 2 for the spectacle and the quiet.
How long is the hike to Na Muang waterfall 2?
The hike to Na Muang 2 takes roughly 20–30 minutes each way, covering about 1.2 km through dense jungle. It's moderately steep with rocky sections that get slippery after rain. Trainers or hiking sandals are essential — flip-flops are not suitable. Most reasonably fit visitors manage it comfortably.
Can you swim at Na Muang waterfall?
Yes — the natural pool at the base of Na Muang 1 is excellent for swimming and is the main reason many visitors come. The water is cool and refreshing, and the pool is large enough for a proper swim. Na Muang 2 has smaller, rockier pools that are less suitable for swimming but spectacular to look at.
How do I get to Na Muang waterfall from Chaweng?
Na Muang waterfall is about 14 km from Chaweng — a 20–25 minute drive via the ring road and the interior access road. No songthaew or public bus serves the falls, so you'll need a rental car, a scooter, a taxi (300–400 THB each way) or an organised jungle safari tour that includes the waterfalls.
What is the best time of year to visit Na Muang waterfall?
October to December brings the most water and the most spectacular cascade, though trails are slippery. January to February is the sweet spot — good flow with safe, dry trails. By April and May the waterfall can slow to a trickle after months without rain. Whatever the season, arrive before 10am to beat the tour buses.
Is Na Muang the biggest waterfall in Koh Samui?
Yes — Na Muang 2, at roughly 80 metres, is the tallest and biggest waterfall on Koh Samui. Na Muang 1 is smaller at around 18 metres but has the better swimming pool. Together they make up the island's most impressive waterfall site, well ahead of Hin Lad and the smaller Secret Falls.
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Some links are affiliate links. InsideSamui.com earns a commission via GetYourGuide and Discover Cars at no extra cost to you. Waterfall heights and access times are approximate. All recommendations based on genuine local knowledge. Updated 2026.