Na Muang Waterfall
Na Muang is the main waterfall on Koh Samui, set in the island's interior south of the main ring road. It has two levels, and the lower one is the easier to reach and the one most visitors see. This note covers how to get there, what the walk involves, what the water is like at different times of year and what to bring.
Where it sits
Na Muang is in the south-central part of the island, reached by a road that cuts inland from the ring road between Lamai and the south coast. It is about 25 to 35 minutes from Lamai and Chaweng, and closer to 45 minutes from the north coast. The approach road is narrow in places, which is worth knowing if you are driving yourself.
The two levels
The waterfall has two levels. The lower fall is reached by a short, well-marked walk from the car park through the forest. The path is flat and suitable for most people, including children. The pool at the bottom is safe for a swim when the water is low, though there is no lifeguard and conditions change after rain.
The upper fall needs more effort. The path climbs through the forest and is uneven in places. It is a trek rather than a stroll, and it is not suitable for young children or people who are not comfortable on a rough path. The view from the top is worth the walk for those who make it.
Do not swim after heavy rain. The water rises quickly and the current becomes dangerous. Check conditions with someone at the car park if you are unsure.
What the water is like
The volume of water depends on the season. In the rainy months, typically from October to December, the falls are at their best and the pool is full. In the dry months, from January to April, the flow can drop considerably and the rock faces are more visible. If you are visiting in the dry season and expecting a dramatic cascade, set your expectations lower and enjoy the forest instead.
What to bring
The walk to the lower fall is short, so you do not need specialist gear, but a few things make the visit easier. Wear shoes with grip, because the path and the rocks near the pool can be slippery. Bring water, sunscreen and a change of clothes if you plan to swim. There is no shop on site, so bring anything you need with you.
- Sturdy shoes with grip for the path and the rocks.
- Water and snacks, as there are no shops on site.
- A change of clothes if you plan to swim.
- Insect repellent, as the forest can be humid and buggy.
Getting there and parking
The waterfall is reached by a road that branches off the ring road. There is a car park at the entrance to the lower fall, and a smaller one for the upper fall trailhead. The car park fills up in the middle of the day, particularly on weekends, so arriving in the morning gives you a better choice of space.
A private driver can drop you at the trailhead and wait, which removes the need to drive the narrow road yourself or think about the return journey. There is a small fee area near the car park, and basic facilities including toilets, though they are simple.
When to go
Early morning is the best time. The light falls on the falls, the car park is emptier and the forest is cooler. By midday the site is busy with day-trippers and the heat builds up. If you are visiting with children, the lower fall in the morning is a relaxed way to see it.
Na Muang is worth visiting for the forest and the walk as much as the water. In the dry season, expect a modest fall and enjoy the surroundings.
