Lat Wanon Waterfall: The Secluded Boulder Rapids of Lipa Noi
Cascade Jungle walk No. 10 of 11 by flow

Lat Wanon Waterfall: The Secluded Boulder Rapids of Lipa Noi

By Samui69 Editorial Team Updated Show on map
Form
Cascade
Walk in
20-30 min
Gate
Free
Swim
3 months
Elevation
37 m

Key facts

Entry Fee
Free
Hike Duration
20 to 30 minutes
Difficulty
Moderate (can be slippery)
Vibe
Entirely natural and often deserted

The fall's own year

Twelve months, read down the page

Each row is a month: the island's rain sits left of the line, this fall's own flow sits right of it, and a dry month leaves a gap instead of a short bar.

  • The island's median
  • Swimmable
Reading down: this fall's own flow against that month's island rain, a hairline tick for the median of all eleven falls, and a bracket on the outer edge for the months its pool is worth swimming in.
Every month's island rainfall, this fall's own flow, and the median flow of all eleven falls, in one table.
MonthRain FlowIsland median
Jan 125 mm Strong 66.7%
Feb 65 mm Good 66.7%
Mar 115 mm Good 33.3%
Apr 85 mm Dry 0%
May 130 mm Dry 0%
Jun 135 mm Dry 33.3%
Jul 115 mm Dry 33.3%
Aug 100 mm Dry 66.7%
Sep 120 mm Low 66.7%
Oct 295 mm Good 100%
Nov 445 mm Strong 100%
Dec 265 mm Strong 100%

Flow tracks the same month's rain at r = 0.57. This fall's year runs 1 month behind the rain.

Swimmable
Feb-Mar Oct

Where this water sits

The drop to the sea

One line from sea level to the island's crest, with this fall pinned at its true height and the other ten waterfalls marked as ticks on the same scale.

Every waterfall's measured height on the same scale, from sea level to the island's crest.
WaterfallElevation
Tarnim Magic Garden442 m
Khao Yai Waterfall230 m
Khun Si Waterfall200 m
Tan Rua Waterfall (Secret Falls)197 m
Hin Lad Waterfall127 m
Wang Sao Thong Waterfall109 m
Zong Raue Waterfall96 m
Sivatara Waterfall70 m
Tartain Waterfall62 m
Na Muang Waterfalls59 m
Lat Wanon Waterfall37 m
Sea level
37 m above the sea
Island crest
595 m of hillside stands above this water
Elevation
11 of 11 by height

The walk in, as one line

One line, from the road to the water

20 to 30 minutes on foot
Every stage of the walk in, from the road to the water, in one table.
StageDetail
At the water 20 to 30 minutes on foot
Surface dirt
Difficulty 2 out of 5
Ends at a pool solitude, shade

Overview

Lat Wanon Waterfall (sometimes spelled Wanorn) is perhaps the best-kept secret of the Lipa Noi district. Unlike the towering vertical drops found elsewhere on Koh Samui, Lat Wanon is a sprawling series of rapids, cascades, and natural rock pools that wind through a boulder-strewn jungle valley. It is a destination defined by its raw, uncommercialized beauty and the profound sense of solitude it offers to those willing to make the trek.

Because Lat Wanon does not appear on many mainstream tourist maps, it remains one of the few places on the island where you can enjoy a tropical waterfall in complete privacy. There are no souvenir shops, no paved parking lots, and no crowds, just the sound of water rushing over ancient granite.

Lat Wanon Waterfall cascading over flat granite slabs into a rock pool
Water carves smooth channels across the granite slabs that give Lat Wanon its raw, uncommercialized character.

The Experience

Visiting Lat Wanon Waterfall feels more like a local exploration than a tourist outing. The journey takes you through the heart of Samui’s agricultural west coast, passing through lush coconut groves and banana plantations before the road simply ends at the edge of the jungle.

The area is a paradise for nature photographers and those who appreciate the smaller details of the rainforest. The way the water has carved deep channels into the massive boulders over thousands of years is a testament to the power of nature. It is a “raw” experience in every sense of the word.

Sunlit granite rock face at Lat Wanon with water sheeting down into a swimming pool below
The exposed granite slabs turn reddish-gold in direct sun, a signature look of Lat Wanon's tiered rapids.

The Jungle Trail

The hike to Lat Wanon is part of the draw for adventure seekers. It is a roughly 1 km trek that follows the stream inland toward the mountains.

  • Terrain: The trail is a mix of dirt paths, exposed tree roots, and large stones. It is not a manicured path, and in some sections, you will need to scramble over boulders.
  • Atmosphere: The canopy is very thick here, providing deep shade but also trapping humidity. It is a hot, sweaty walk, which makes reaching the water all the more satisfying.
  • Navigation: The trail can be faint in places. If you lose the path, simply stay close to the sound of the running water and follow the stream upward.

Swimming & Rapids

Lat Wanon is less about deep diving and more about relaxing in refreshing “nature baths.”

  • The Rock Pools: As the water flows down the valley, it settles into various basins carved into the rock. These pools are generally shallow (ranging from knee to waist-deep), making them perfect for sitting and cooling off.
  • The Hydro-Massage: The rapids sections between the pools create a natural “Jacuzzi” effect. Finding a flat rock to sit on while the cool mountain water rushes over your shoulders is one of the most relaxing experiences Samui has to offer.
  • Privacy: Because the waterfall is spread out over a long distance, you can easily find your own private tier far away from the trail entrance.
Boulder-strewn jungle stream typical of the rapids at Lat Wanon
A generic illustration of the kind of boulder rapids and shallow rock pools found along Lat Wanon's valley.

Getting There

Lat Wanon Waterfall is located on the west side of the island, inland from the Lipa Noi coast.

  • Directions: From the main Ring Road (Route 4169) south of Nathon, turn onto road 4174 heading toward the mountains. You will pass signs for various “Safari” tours. Continue following the road as it narrows and passes through fruit plantations.
  • The Trailhead: The road eventually ends at a small clearing near a stream. This is where you park your vehicle. There is no official parking lot, so ensure you park your scooter or car off to the side to allow local farmers to pass.
  • By Scooter: This is the most efficient way to reach the trailhead. The road is paved most of the way and is not as steep as the roads to the central mountain falls.

Best Time to Visit

Lat Wanon is one of the most seasonal waterfalls on Koh Samui. Its character changes dramatically depending on the month.

Period Water Flow Vibe
Nov - Jan High ★★★★★ The best time to see the rapids and swim in the pools.
Feb - Mar Moderate ★★★★ Still flowing, but pools are shallower. Great hiking weather.
Apr - Aug Low / Dry ★★ Often just dry boulders; visit for the jungle trek only.
Sep - Oct Rising ★★★ Flow returns with the early rains; can be very muddy.
Lat Wanon's boulder rapids running high and muddy brown during the November flood season
During the wet season the stream swells fast, turning the usually clear rapids a churning brown.

Important Note: If it hasn’t rained for several weeks, Lat Wanon can be completely dry. It is best to check the recent weather before making the trip.

Practical Tips

Since Lat Wanon is remote and lacks facilities, preparation is key:

  • No Amenities: There are no shops, toilets, or food stalls at the waterfall or the trailhead. Bring everything you need, including plenty of water.
  • Footwear: Do not attempt this hike in flip-flops. The rocks are often covered in moss and are incredibly slippery when wet. Wear shoes with a strong rubber grip.
  • Mosquitoes: The still pools and humid jungle make this a hotspot for mosquitoes. Apply a high-quality repellent before you start the hike.
  • Leave No Trace: Because there is no trash collection here, it is vital that you carry out everything you bring in to preserve this pristine environment.
Rural road through the Lipa Noi plantations on the way to Lat Wanon
Quiet village road near the Lat Wanon trailhead
Forest creek winding through rocks and dense jungle
Narrow rock gorge along the Lat Wanon trail with a thin trickle of water in the dry season
Whitewater spray bursting over a granite ledge along Lat Wanon's rapids
Powerful monsoon flow crashing down a rock chute beneath overhanging jungle vines
The plantation roads, jungle gorges, and granite rapids of Lat Wanon across the seasons.

FAQ

Is Lat Wanon Waterfall good for families? Only for families with older children who enjoy a bit of a challenge. The trail requires balance and some climbing over rocks, which may be difficult for young children or the elderly.

Can I swim at Lat Wanon? Yes, but it’s more about wading and sitting in the pools than swimming laps. The water is shallow but very refreshing.

How long should I spend there? Most visitors spend about 1.5 to 2 hours in total, including the hike and time to relax at the pools.

Is it easy to find? It can be tricky as the signage is minimal. Using GPS coordinates or a reliable offline map is recommended to find the exact end of the road where the trail starts.

Is there an entry fee? No, Lat Wanon is currently free to visit and does not have an official entrance gate. It is one of the last few “wild” waterfalls on the island.

About the author

Samui69 Editorial Team

Editorial team

Guides researched and fact-checked by the Samui69 editorial team: residents and frequent visitors who verify opening hours, prices and directions on the ground.

About the author →

What this fall earns

Before you go

Not every hazard on the island applies to every fall. These are only the rules this one earns, drawn from its own record, not the full checklist printed on every page.

  • Wet rock

    Granite turns slippery within seconds of getting wet, shaded patches included. Move slowly near any ledge.

  • Rising flow

    Rain upstream can lift a fall's flow within the hour, well before it starts raining where you're standing.

  • Never dive

    Pool depth shifts with the season and the rock underneath is often out of sight. Wade in, don't jump.

  • Wear real shoes

    Flip-flops slide on wet stone. Closed shoes or grippy sandals make every one of these walks safer.

  • Leeches after rain

    The jungle falls can carry leeches on the trail right after rain. Long socks help more than repellent does.

  • What dry means

    A dry month here means bare rock, not a smaller waterfall. There is no trickle to see, only stone.

  • Carry it out

    None of these trails have bins along the way. Whatever you bring in, fruit peel included, leaves with you too.

Read the full set of rules

Beyond this fall

What else is close

The nearest beach, temple, trail and other waterfall from here, each with its real distance, for whatever comes after this one.