Klong Namsai

Updated June 11, 2025

Klong Namsai spring | Thailand travel, Trip, Outdoor

## Klong Namsai (คลองน้ำใส), Surat Thani: What It Is and What Visitors Actually Do There

Klong Namsai (often written “Khlong Nam Sai”) is a natural canal attraction in Tham Singkhon, Khiri Rat Nikhom District, Surat Thani Province, Thailand. It’s widely described and reviewed as a place to cool off in notably clear, cool freshwater, with the setting shaded by trees along the canal.

Your provided map pin/address aligns with listings that place Klong Namsai at/near:
– Tham Singkhon, Khiri Rat Nikhom District, Surat Thani 84180, Thailand
– Plus Code area: 2288+64C, Tham Singkhon, Khiri Rat Nikhom District, Surat Thani 84180, Thailand (as supplied in your data)

## Quick facts you can publish (verified from accessible sources)

### Location and coordinates
– District/Province: Khiri Rat Nikhom, Surat Thani Province
– Coordinates shown on Trip.com: 9.015490, 99.015690 (very close to the coordinates you provided)
– Category: Natural scenery / tourist attraction (as categorized by Trip.com)

### Opening hours (note: sources conflict)
– Trip.com lists opening hours as 8:00 AM–5:00 PM.
– Separately, a Trip.com “Moments” post claims “Opening hours: 24 hrs.”

Outdated/uncertain data flag: because these two Trip.com properties disagree, treat “official opening hours” as unconfirmed unless you verify with an on-the-ground source or an official local page that loads reliably.

### Size and nearby feature (from Thailand tourism listing snippet)
A Tourism Authority of Thailand attraction snippet states:
– The canal is about 5–6 meters wide, about 3 km long, and about 2.5 meters deep.
– About 2 km from the canal there is a hot mineral water bath.

Outdated/uncertain data flag: I can’t fully open the TourismThailand page content (it appears to render dynamically in this environment), so I’m only using the text that is visible in the search snippet.

## What it’s known for (phrased as “reported by visitors,” not assumptions)

### Clear, cool freshwater for swimming and wading
Multiple visitor reviews describe Klong Namsai as a clear-water canal/stream suitable for getting in the water to cool down.
A reviewer explicitly frames it as a stop to “soak in the cool water”—including as a stop when traveling back from the Cheow Lan Dam area.

### Shade and forest feel
Visitors also describe heavy shade from trees and vines along the canal, making it possible to spend time in the water without full sun exposure (their phrasing; not a safety guarantee).

### Simple on-site services (reported)
Visitor reviews and posts repeatedly mention:
– Food options / restaurants and snack shops
– Float / life ring rentals
– Camping allowed (reported in reviews)

## Fees and pricing: what’s consistent, what’s not

You’ll see a few different fee structures mentioned across sources:

– A Thai-language Trip.com “Moments” post (April 2024) states entrance 20 THB and parking 20 THB, and notes there are many food vendors inside.
– Trip.com attraction reviews include a report of parking 20 THB, plus service/entry fees that vary by visitor type (example: adults/children/foreigners) in a single reviewer’s text.
– Another third-party travel post says admission is free with 20 THB parking per car.

Outdated/uncertain data flag: because fee claims vary (free vs 20 THB entry; differing adult/child/foreigner rates), publish fees as “recent visitor-reported” unless you can confirm the current official pricing at the entrance or via an official local listing.

## What to expect on-site (based on what people specifically mention)

### The water access points may be sloped
A Trip.com post notes that each entry point to the water is a slope (their wording), which matters for families and anyone with mobility concerns.

### There may be designated photo spots/structures
One reviewer mentions a wooden bridge and a photo corner in the forested area.

### It’s positioned as an easy add-on with Cheow Lan Lake / Ratchaprapha Dam trips
A Trip.com reviewer directly describes Klong Namsai as a place you can stop at when visiting Cheow Lan Dam (Ratchaprapha Dam) and heading back.

## Inclusive, accuracy-first notes you can include without overclaiming

– Supervision: One visitor review explicitly says children should be supervised (this is their statement; not a legal or medical claim).
– Accessibility: A sloped water entry can be challenging for some travelers; the only factual claim here is that a visitor described sloped entries.
– Crowding patterns: One review recommends mornings for fewer people (again: visitor suggestion, not a guarantee).

## Suggested internal links (only if these pages exist on your site)
– Link to your guide on Cheow Lan Lake / Ratchaprapha Dam (Surat Thani) (context: visitors mention pairing trips).
– Link to your guide on Khiri Rat Nikhom District or Surat Thani Province as the broader planning hub.

Key Highlights

Klong Namsai

Location

Places to Stay Near Klong Namsai"Cool down on a hot day"

Find and Book a Tour

Explore More Travel Guides