Na Muang in October: Roaring
The island's water year
The same rain reaches eleven Samui waterfalls at eleven different speeds. Below is the whole year at once, then a month you can pick to see who is running and who has gone quiet.
Right now on the falls October 2026
Next month, November: 10 of 11 running strong.
Water year
Pick a month, watch the water
The same rain reaches every fall on the island at its own speed. Pick a month below and watch all eleven answer: who is roaring, who is down to a trickle and who has gone silent.
January 4 roaring, 5 rushing, 2 trickling, 0 silent
February 1 roaring, 6 rushing, 3 trickling, 1 silent
March 0 roaring, 2 rushing, 6 trickling, 3 silent
April 0 roaring, 0 rushing, 4 trickling, 7 silent
May 0 roaring, 2 rushing, 2 trickling, 7 silent
June 0 roaring, 4 rushing, 3 trickling, 4 silent
July 0 roaring, 5 rushing, 4 trickling, 2 silent
August 1 roaring, 6 rushing, 2 trickling, 2 silent
September 2 roaring, 8 rushing, 1 trickling, 0 silent
October 8 roaring, 3 rushing, 0 trickling, 0 silent
November 10 roaring, 1 rushing, 0 trickling, 0 silent
December 8 roaring, 1 rushing, 2 trickling, 0 silent
Eleven falls, wettest at the top. A break in a ribbon means that fall ran dry that month; the rain sits in a strip at the foot, under the same twelve months.
Zong Raue Roadside
Jan Oct Nov
Khun Si Steep hike
Oct Nov Dec
Tan Rua Roadside
Jan Feb Nov
Hin Lad Jungle walk
Aug Sep Oct
Sivatara Managed park
Jan Feb Jun
Na Muang Roadside
Jan Oct Nov
Khao Yai Roadside
Oct Nov Dec
Tartain Steep hike
Oct Nov Dec
Tarnim Managed park
Oct Nov
Lat Wanon Jungle walk
Jan Nov Dec
Wang Sao Thong Jungle walk
Sep Oct Nov
Island rain, mm
125 8 days 65 4 days 115 5 days 85 6 days 130 11 days 135 10 days 115 11 days 100 10 days 120 11 days 295 16 days 445 16 days 265 12 daysZong Raue Best Jan Oct Nov
Khun Si Best Oct Nov Dec
Tan Rua Best Jan Feb Nov
Hin Lad Best Aug Sep Oct
Sivatara Best Jan Feb Jun
Na Muang Best Jan Oct Nov
Khao Yai Best Oct Nov Dec
Tartain Best Oct Nov Dec
Tarnim Best Oct Nov
Lat Wanon Best Jan Nov Dec
Wang Sao Thong Best Sep Oct Nov
Island rain, mm
Pick a fall
For the month you are here
Three questions and your month. The falls that fit float to the front; the rest stay on the table, greyed, so you can see what you are giving up.
Roaring Too strong Trickling Too low Trickling Too low Trickling Too low Rushing Swim OK Rushing Swim OK Rushing Swim OK Rushing Swim OK Rushing Swim OK Roaring Too strong Roaring Too strong Roaring Too strong
Unlike many other falls where the pools are filled with jagged rocks, the basins at Zong Raue often have sandy or soft silt bottoms.
Rushing Swim OK Rushing Swim OK Rushing Swim OK Trickling Too low Trickling Too low Trickling Too low Trickling Too low Rushing Swim OK Rushing Swim OK Roaring Too strong Roaring Too strong Roaring Too strong
The air is filled with a cool, misty spray, and the sound of the falls is amplified by the cave walls.
Roaring Too strong Roaring Too strong Trickling Too low Silent Too low Silent Too low Trickling Too low Rushing Swim OK Rushing Swim OK Rushing Swim OK Rushing Swim OK Roaring Too strong Roaring Too strong
This natural fortification keeps the large tour buses away, leaving the site to independent explorers and adventure seekers.
Trickling Too low Silent Too low Silent Too low Trickling Too low Rushing Swim OK Rushing Swim OK Rushing Swim OK Roaring Too strong Roaring Too strong Roaring Too strong Roaring Too strong Trickling Too low
Several smaller plunge pools dot the trail below the main waterfall, offering quieter spots to cool off.
Rushing No pool Rushing No pool Trickling No pool Trickling No pool Trickling No pool Rushing No pool Rushing No pool Rushing No pool Rushing No pool Rushing No pool Rushing No pool Rushing No pool
Discover Sivatara Waterfall on Koh Samui, at the Lamai Viewpoint: the Valentine Stone, a fish spa, ziplining, and coastal views.
Roaring Too strong Trickling Too low Trickling Too low Silent Too low Silent Too low Trickling Too low Trickling Too low Rushing Swim OK Rushing Swim OK Roaring Too strong Roaring Too strong Roaring Too strong
Far fewer visitors make the climb, so you may have the waterfall entirely to yourself.
Rushing Swim OK Rushing Swim OK Trickling Too low Silent Too low Silent Too low Silent Too low Trickling Too low Trickling Too low Rushing Swim OK Roaring Too strong Roaring Too strong Roaring Too strong
Khao Yai Waterfall on Koh Samui: a 5-10 minute walk to tiered cascades and cool pools, no entry fee, small parking charge.
Rushing Swim OK Rushing Swim OK Trickling Too low Silent Too low Silent Too low Silent Too low Trickling Too low Trickling Too low Rushing Swim OK Roaring Too strong Roaring Too strong Roaring Too strong
Tartan (Tartain) Waterfall on Koh Samui: a 100 THB family-run jungle hike with 9 marked levels, rope climbs and a plunge pool.
Trickling No pool Trickling No pool Silent No pool Silent No pool Silent No pool Rushing No pool Rushing No pool Rushing No pool Rushing No pool Roaring No pool Roaring No pool Trickling No pool
Tarnim Magic Garden is the Secret Buddha Garden: a jungle sculpture park on Pom Mountain, Koh Samui.
Roaring Too strong Rushing Swim OK Rushing Swim OK Silent Too low Silent Too low Silent Too low Silent Too low Silent Too low Trickling Too low Rushing Swim OK Roaring Too strong Roaring Too strong
Lat Wanon Waterfall in Lipa Noi is free, a 30-minute jungle hike off Route 4174, and best Nov-Jan.
Rushing Swim OK Rushing Swim OK Silent Too low Silent Too low Silent Too low Silent Too low Silent Too low Silent Too low Roaring Too strong Roaring Too strong Roaring Too strong Roaring Too strong
Wang Sao Thong Waterfall on Koh Samui: a short jungle hike (0.5-1 km), parking 20-30 THB, best September to January when it flows.
Greyed cards miss at least one of your answers.
Walk and height
How far, how high
The question that decides most waterfall trips is rarely the height of the drop, it's the walk from wherever you leave the car. Below, every fall as a range: quick on the near end, a real walk on the far one.
Dotted line: the quickest walk in. Blue bar: how long it can take, on a wet day or at a slow pace. Tarnim's stream runs through a hillside garden you wander rather than a trail you walk to, so it carries no walk time here.
Height of the water above the sea at each pin (terrain model), not the size of the drop.
Only 2 of the 11 falls have a published drop.
| Waterfall | Walk | Elevation | The drop, against the Big Buddha |
|---|---|---|---|
| Zong Raue | 10-15 min | 96 m | Not stated |
| Khun Si | 10-15 min | 200 m | Not stated |
| Tan Rua | 5-10 min | 197 m | Not stated |
| Hin Lad | 20-40 min | 127 m | 30 m |
| Sivatara | 10-15 min | 70 m | Not stated |
| Na Muang | 5-40 min | 59 m | 80 m |
| Khao Yai | 5-10 min | 230 m | Not stated |
| Tartain | 30-60 min | 62 m | Not stated |
| Tarnim | Not stated | 442 m | Not stated |
| Lat Wanon | 20-30 min | 37 m | Not stated |
| Wang Sao Thong | 15-20 min | 109 m | Not stated |
| Big Buddha | 12 m |
Where they are
And what to pair them with
Every fall on the island, pinned. Beside it, the beach, temple and trail closest to each one, close enough to fold into the same trip.
11 waterfalls tap a drop
Open the full mapNone of these eleven waterfalls sit alone. Each one has a beach, a temple or a trail close enough to fold into the same trip.
Every fall side by side, wettest first. The bars are the twelve months of flow, January first; a teal line under a month marks the swim window.
| Waterfall | Kind | Form | Walk | Gate | Flow, Jan to Dec | Height | Good to know | Checked |
|---|---|---|---|---|---|---|---|---|
 Zong Raue Ang Thong | Roadside | Cascade | 10-15 min | Free | 96 m | fruit plantation, shade | 25 Sept 2026 | |
 Khun Si Bo Phut | Steep hike | Tiered | 10-15 min | 50 THB, parking only | 200 m | cave, viewpoint, bar | 1 Oct 2026 | |
 Tan Rua Maenam · #3 by local reckoning | Roadside | Tiered | 5-10 min | 20 THB, parking only | 197 m | cafe, zipline, viewpoint | 24 Sept 2026 | |
 Hin Lad Ang Thong · #2 by local reckoning | Jungle walk | Tiered | 20-40 min | Free | 127 m | temple, meditation, shade | 22 Sept 2026 | |
 Sivatara Maret | Managed park | Cascade | 10-15 min | 100 THB / 300 THB | 70 m | fish spa, zipline, viewpoint, car park | 24 Sept 2026 | |
 Na Muang Na Mueang · #1 by local reckoning | Roadside | Plunge | 5-40 min | 60 THB, parking only | 59 m | stalls, car park, food | 1 Oct 2026 | |
 Khao Yai Na Mueang | Roadside | Tiered | 5-10 min | 20 THB, parking only | 230 m | drinks stall, shade | 1 Oct 2026 | |
 Tartain Lipa Noi | Steep hike | Tiered | 30-60 min | 100 THB / 150 THB | 62 m | walking stick, drinking water, solitude | 1 Oct 2026 | |
 Tarnim Na Mueang | Managed park | Cascade | Not stated | 80 THB / 100 THB | 442 m | sculpture garden, viewpoint, cafe | 30 Sept 2026 | |
 Lat Wanon Lipa Noi | Jungle walk | Cascade | 20-30 min | Free | 37 m | solitude, shade | 1 Oct 2026 | |
 Wang Sao Thong Na Mueang | Jungle walk | Tiered | 15-20 min | 30 THB, parking only | 109 m | solitude, shade | 1 Oct 2026 |
Zong Raue Roadside
fruit plantation, shade
Khun Si Steep hike
cave, viewpoint, bar
Tan Rua Roadside
cafe, zipline, viewpoint
Hin Lad Jungle walk
temple, meditation, shade
Sivatara Managed park
fish spa, zipline, viewpoint, car park
Na Muang Roadside
stalls, car park, food
Khao Yai Roadside
drinks stall, shade
Tartain Steep hike
walking stick, drinking water, solitude
Tarnim Managed park
sculpture garden, viewpoint, cafe
Lat Wanon Jungle walk
solitude, shade
Wang Sao Thong Jungle walk
solitude, shade
Locals rank these three by size, but no source publishes the measurement behind it. We repeat the order as a convention here, never as something we measured.
Before you go
What the rock and the rain teach
Every fall here is wild water on granite. These are the rules our own visits taught us; each fall's page shows the ones that apply to it.
Wang Sao Thong in spate
Rule one
Rain upstream can lift a fall's flow within the hour, well before it starts raining where you're standing.
At 10 of 11 falls
Granite turns slippery within seconds of getting wet, shaded patches included. Move slowly near any ledge.
At 11 of 11 falls
Pool depth shifts with the season and the rock underneath is often out of sight. Wade in, don't jump.
At 9 of 11 falls
Flip-flops slide on wet stone. Closed shoes or grippy sandals make every one of these walks safer.
At 7 of 11 falls
The jungle falls can carry leeches on the trail right after rain. Long socks help more than repellent does.
At 3 of 11 falls
A dry month here means bare rock, not a smaller waterfall. There is no trickle to see, only stone.
At 8 of 11 falls
None of these trails have bins along the way. Whatever you bring in, fruit peel included, leaves with you too.
At 11 of 11 falls
A few of these falls sit on private land with a gate fee. That's normal here, not a tourist markup.
At 8 of 11 falls
Waterfalls, answered
Questions people actually ask
Three of the eleven keep at least some flow all year: Zong Raue, Khun Si and Sivatara. Sivatara is a managed park with pools that are topped up, so it's also the only one of the three that never runs strong either.
April is the driest month for flow, not February, even though February gets the least rain. The falls fill within days of heavy rain but take months to drain, so the low point in the water lags well behind the low point in rainfall.
No. Our swim rule needs a pool and a good, not overwhelming, flow, which peaks earlier than the strongest running months. Check the swim window section for each fall rather than assuming peak flow means peak swimming.
Na Muang has the island's tallest single drop, reached by a jungle trek above its lower, easier pool. Two other falls are locally called the second and third largest, but that ranking is a local convention, not a published measurement.
Most are free or charge only for parking. A few sit on private land and charge a gate fee for entry, which is normal here rather than a tourist markup - the directory below marks which is which for every fall.
No. Two of the eleven, Sivatara and Tarnim, have no pool worth swimming in - Sivatara is built around a fish spa and viewpoint, and Tarnim is a garden stream you wade in rather than swim.
Whichever is running when you go. Zong Raue, Khun Si and Sivatara keep some flow all year, Na Muang has the tallest drop, and the month picker above shows which falls are running and which have gone quiet.
