Wang Sao Thong Waterfall: Short Jungle Hike, Fees, Best Months

Overview

Wang Sao Thong Waterfall is a quietly kept secret in the south-central mountains of Koh Samui. While the vast majority of tourists flock to the nearby and heavily promoted Na Muang Waterfalls, Wang Sao Thong offers a serene, multi-tiered cascade set deep within a raw, uncommercialized tropical jungle. It is the perfect spot for nature lovers looking to escape the crowds, offering a peaceful atmosphere and an authentic island experience.

Because the area remains relatively undeveloped, the sounds of nature (chirping cicadas, rushing water, and rustling leaves) completely drown out any noise from the island’s ring road.

The Jungle Hike

Reaching Wang Sao Thong Waterfall requires a bit of effort, which helps keep the crowds at bay. The trek is approximately 1 km long and takes you through a shaded, humid, and dense tropical rainforest.

The path is not completely paved; instead, you will find yourself navigating over large exposed tree roots, uneven dirt trails, and slippery rocks. The hike is moderately challenging and is best suited for those with a reasonable level of fitness. Sturdy footwear with good grip is absolutely essential: flip-flops or bare feet are not recommended here due to the slippery nature of the terrain.

As you hike, you will notice the flora changing, with massive ferns and towering bamboo stalks framing the trail. The physical exertion makes arriving at the cool cascades even more rewarding.

Swimming & Pools

Wang Sao Thong is not famous for massive, deep swimming lagoons, but rather for its series of modest, refreshing natural pools situated at the base and between the different tiers of the falls.

These pools are generally shallow but are perfect for a cooling dip after the sweaty jungle hike. The water is crisp, flowing directly down from the mountain peaks.

• Relaxation: The smooth, flat boulders surrounding the pools serve as excellent natural loungers. You can sit, relax, read a book, or simply listen to the water.
• Safety Check: Always check the depth of the water before jumping in, as submerged rocks can be hard to spot from the surface. Diving is generally discouraged here due to the shallow depths.

Is Wang Sao Thong Waterfall Worth Visiting?

It depends on the month. Wang Sao Thong is a small waterfall, and visitor opinion is split: one TripAdvisor reviewer calls the walk “500 metres to nothing”, while Komoot users call it a small but charming fall in the jungle with a demanding trail. It is worth the trip from September to January, when the water runs, and for the quiet jungle walk itself; in the dry months skip it or treat it as a short hike only. If you want the island’s biggest, most visited falls, go to Na Muang instead, and see the waterfalls and hikes guide to compare them. A longer trail option is covered in the Wang Sao Thong trail guide.

Getting There

Wang Sao Thong Waterfall is located in the south-central part of Koh Samui, just north of the ring road (Route 4169) near Ban Hua Thanon, quite close to Wat Kunaram (the famous Mummified Monk Temple) and the Na Muang Waterfalls.

Open the full map

• By Scooter or Car: The easiest way to reach the trailhead is by renting a scooter or car. From the main ring road (Route 4169) near Wat Kunaram, look for small signs pointing inland toward the mountains. You will turn off the main road and follow a narrower, sometimes steep, concrete road until you reach the makeshift parking area.
• Parking: Locals usually maintain the parking area and charge a nominal fee of 20 to 30 THB per vehicle.
• By Songthaew: a songthaew along Route 4169 can drop you at the Na Mueang turn (fares typically 50-70 THB, as of 2026), followed by a walk of roughly 800 m to the entrance.
• By Taxi: You can hire a songthaew or a private taxi, but be prepared to negotiate a waiting fee, as finding a return ride from the waterfall’s remote parking lot can be difficult.

Best Time to Visit

Like all waterfalls on Koh Samui, Wang Sao Thong is highly seasonal. Its beauty and water flow depend entirely on the monsoon rains.

Season	Months	Waterfall Flow	Recommendation
Rainy / Post-Rainy	September - December	High and powerful	★★★★★ The best time to visit for impressive cascades.
Cool & Dry	January - February	Moderate	★★★★ Good flow and pleasant hiking weather.
Hot & Dry	March - August	Trickle or completely dry	★★ Skip the swim, but still a nice jungle hike.

Visiting right after a heavy rain shower yields the best sights, but be extra cautious on the slippery jungle path.

Rain above, the fall below

Jan 125 Rushing Swim Feb 65 Rushing Swim Mar 115 Silent Apr 85 Silent May 130 Silent Jun 135 Silent Jul 115 Silent Aug 100 Silent Sep 120 Roaring Now Oct 295 Roaring Nov 445 Roaring Dec 265 Roaring

Island rain, mm, above the line This fall's flow below it: strong, good, low; dotted is dry Swim month

January The swim months: water to swim in

• Flow: Rushing
• Swim OK
• 125 mm over 8 days
• Island crowds high

February The swim months: water to swim in

• Flow: Rushing
• Swim OK
• 65 mm over 4 days
• Island crowds high

March Bare rock: come back after the rain

• Flow: Silent
• Too low
• 115 mm over 5 days
• Island crowds moderate

April Bare rock: come back after the rain

• Flow: Silent
• Too low
• 85 mm over 6 days
• Island crowds moderate

May Bare rock: come back after the rain

• Flow: Silent
• Too low
• 130 mm over 11 days
• Island crowds low

June Bare rock: come back after the rain

• Flow: Silent
• Too low
• 135 mm over 10 days
• Island crowds low

July Bare rock: come back after the rain

• Flow: Silent
• Too low
• 115 mm over 11 days
• Island crowds moderate

August Bare rock: come back after the rain

• Flow: Silent
• Too low
• 100 mm over 10 days
• Island crowds moderate

September Most dramatic, admire it from the rocks

• Flow: Roaring
• Too strong
• 120 mm over 11 days
• Island crowds low

October Most dramatic, admire it from the rocks

• Flow: Roaring
• Too strong
• 295 mm over 16 days
• Island crowds low

November Most dramatic, admire it from the rocks

• Flow: Roaring
• Too strong
• 445 mm over 16 days
• Island crowds low

December Most dramatic, admire it from the rocks

• Flow: Roaring
• Too strong
• 265 mm over 12 days
• Island crowds high

Wang Sao Thong and three other falls

Each card shows a fall's year, with this month marked, so you can see which one fits your day.

• 

  You are here

  Wang Sao Thong

  Roaring

  Walk

  15-20 min

  Gate

  30 THB, parking only

  Kind

  Jungle walk

  Flow rank

  No. 11 of 11
• 

  Na Muang

  Roaring

  Walk

  5-40 min

  Gate

  60 THB, parking only

  Kind

  Roadside

  Flow rank

  No. 6 of 11
• 

  Khao Yai

  Roaring

  Walk

  5-10 min

  Gate

  20 THB, parking only

  Kind

  Roadside

  Flow rank

  No. 7 of 11
• 

  Tarnim

  Roaring

  Walk

  Not stated

  Gate

  80 THB / 100 THB

  Kind

  Managed park

  Flow rank

  No. 9 of 11

The full list and the year of every fall

Practical Tips

To make the most out of your visit to this hidden gem, keep these tips in mind:

• Footwear: Wear proper hiking shoes or sports sandals with strong traction. The rocks near the falls get incredibly slick.
• Bug Repellent: The dense, humid jungle is a haven for mosquitoes. Bring a strong insect repellent.
• Supplies: There are no restaurants or cafes at the waterfall itself. Buy water and light snacks from the small shops near the parking area before you start the hike.
• Do Not Climb the Falls: signs at the site warn against climbing the rock faces, and listings report fatalities after falls from the rocks. Stay on the pools and boulders at the base.
• Leave No Trace: Help keep this pristine natural environment clean by taking all your trash back out with you.

Nearby Attractions

Because the hike and visit might only take 1.5 to 2 hours, it is very easy to combine Wang Sao Thong with other southern attractions.

• Wat Kunaram (Mummified Monk): Located just off the main road, less than a 10-minute drive from the waterfall turn-off.
• Na Muang Waterfalls 1 & 2: If you want to compare this quiet spot with the island’s tallest and most famous waterfalls, they are just a 10-to-15-minute drive away.
• Hua Thanon Fishing Village: the Hua Thanon beach and fishing village is the nearest place for a seafood lunch afterwards.
• Secret Buddha Garden (Tarnim Magic Garden): Further up the mountain roads, featuring mystical stone statues hidden in the jungle canopy.
• Khao Yai Waterfall: another quiet interior waterfall with a 5-10 minute walk, for a second swim stop on the same day.
• Tartain Waterfall: A steeper, rope-assisted hike a few kilometers beyond the garden, for visitors who want a tougher climb than Wang Sao Thong.

A simple half-day plan: start at the trailhead in the morning while the jungle is shaded and cooler, swim and rest at the pools, then drive to Wat Kunaram and on to Na Muang if you still have energy. Go early in the wet season, because afternoon rain makes the trail slicker and the return harder. Bring water, insect repellent and a dry bag for your phone, and keep your scooter helmet with you rather than leaving it on the bike at the parking area.

FAQ

Is Wang Sao Thong Waterfall suitable for young children? The trail is uneven, muddy, and requires climbing over tree roots. Older children accustomed to hiking will find it fun, but it is not recommended for toddlers or those requiring strollers.

How much does Wang Sao Thong Waterfall cost? Entry is usually free; you pay for parking, about 20 THB for a motorbike and 30 THB for a car. One listing mentions a 20 THB entry fee, so keep small change ready. There are no restaurants or shops at the falls themselves.

How long is the hike to Wang Sao Thong Waterfall? Allow 15-20 minutes each way on an uneven jungle trail. Sources give the distance as anything from 500 m to about 1 km, and the path has roots, slippery rock and a stream crossing after rain, so wear shoes with grip.

When does Wang Sao Thong Waterfall have water? Flow is best from September to December, decent in January and February, and thin or dry through the hot season, roughly March to August (listings vary). Go soon after heavy rain, but take extra care on the wet trail.

Is Wang Sao Thong the best waterfall in Koh Samui? Not for size: Na Muang is the most visited and tallest. Wang Sao Thong is smaller and quieter, so it suits visitors who want a jungle walk without crowds. See the waterfalls and hikes guide for a full comparison.

Do I need a guide to reach the waterfall? No, the path is straightforward enough that you will not get lost if you follow the main trail from the parking lot. A guide is not necessary.

Is it safe to drink the waterfall water? No, you should never drink untreated water from the streams or pools in the jungle. Always bring your own bottled water.

Are there dangerous animals on the trail? You are in a tropical jungle, so you might spot spiders, lizards, or occasional snakes. However, if you stick to the path and do not provoke wildlife, there is very little danger.