The name of Namtok Chet Sao Noi is from the story of the people in the area. For along time, seven ladies tourist drowned together in this waterfall. (Namtok=waterfall, Chet=seven, Sao Noi=young lady) and another story believed that it came from a village’s name “Ban Sao Noi” (Pronounce shortly) and it became “Ban Sao Noi” until present.

On September 5, 1978 (B.E.2521) Nakhon Ratchasima Regional Forestry Office surveyed the area around Namtok Chet Sao Noi for setting to be a forest park with the area 0.72 sq.km, moreover supplemented surveying an area of Dong Phaya Yen National Reserved Forest about 0.78 sq.km, so including the total area 1.50 sq.km approximately.

The Royal forest department surveyed Muak Lek stream, which born from Khao Yai forest, Pak Chong district, Nakhon Ratchasima province, confluence with Pasak river at Wang Muang sub-district, Muak Lek district, Sara Buri province, due to it is the waterway flowing through the upper part of the plateau at Sara Buri province pass the complex not rather heigh mountain range so it caused of short level waterfalls, but the beautiful of the nature is different, it seems to be a man- made dam with stream all round year.

So the Royal forest department declared to be Namtok Chet Sao Noi Forest Park on May 21, 1980, cover the area of Muak Lek, Pak Chong sub-district and in the Dong Phaya Yen and Thap Kwang-Muak Lek National Reserved Forests with the area about 0.86 sq.km.

Afterwards Dr.Plodprasop Surasawadi who is the head of the Royal forest department visited Namtok Chet Sao Noi forest park on June 2002, then he saw the development of forest park, composed with the amount of the tourists were increasing and a lot so he had a policy that should be expanded the area for carrying the tourists, also increased surveying with the research in the ecological data and the foundation data on the general management, all those for the evaluation of possibility to determine the area and planing to be a national park.

National Park office considered and approved to determine this area to be a national park with approximately area 28.06 sq.km. And the order number 2177/2546 on November 10, 2003 to Mr.Sompong Kornthong, the head of Namtok Chet Sao Noi forest park had the duty to control and manage this area after became the national park.

Geographical Features

The most area of Namtok Chet Sao Noi National Park is ruggedly mountainous alternate with the plateau. The area rather dry with the shallow soil surface, height above msl is 180-402 m. The highest peak of the area is on the Chokchai Phatthana with 402 m above msl , next is the mountain range which is in the central of the area and Ban Dong Namcha mountain range 386, 359 m above msl following. The foothills are on the East and the North side, which near Khlong Muak Lek, there is a stream flows all year and tributary to Pasak river at Wang Muang district while the central area with streamlet flow through is Huai Laeng which has the stream in only rainy season.

Weather Condition

The climate predicted from the data of rain found the area of the national park in Central of Thailand is on the influent of monsoon, on May-October has the influent of Southwest monsoon wind, induced humidity from the sea and the ocean and the caused of rainy season. On November-February has the influent of Northeast monsoon wind, lead the coldness from the North of Asia, bring to the winter. Whereas the summer is in February-April.

A data of rain in the period of 10 year (B.E.2536-2545) measures the average of rain amount all year about 1,191 ml. August is the month with the highest peak of rain amount on day period about 46 ml. September has the most of average rain amount about 232 ml.

A temperature data in the period of 10 year (B.E.2536-2545), the average temperature all year about 26 degree Celsius, maximum average temperature is 31 degree Celsius and minimum is 21 degree Celsius, dropping to 17 degree Celsius in January and soaring to 34 degree Celsius in April.

Saraburi province is far away from Bangkok along highway number 1 (Paholyothin road),about 108 km and follow train route in the northwest about 113 kms. From the city of Saraburi use the main route, high way number 2, takes distance from the city of Saraburi to crossroad into province highway number 2224 about 41 km, from this highway crossroad into Namtok Chedsaonoi national park about 12kms on right hand, opposite a temple of Namtok Chet Sao Noi.

By train, catch the Northeast train, circulation the passengers at Saraburi station, Khang Kroy station and Muak LeK station after that catch a taxi Saraburi- Khang Kroy - Muak Lek to in front of national park.

By the bus Bangkok-Saraburi or Bangkok-lopburi, takes time about 2 hours, the bus will stop at Saraburi transportation station, after that catch a taxi, it takes time about an half hour to stop in front of the national park or catch the bus Bangkok-Nakornrachasima, it takes time about 3 hours, stop at market after that catch a taxi Saraburi- Khang Kroy - Muak Lek to stop in front of national park.

This national park no bungalows available. Please bring your own tents or rent the the tents that prepared by the park.

Chet Saonoi Waterfall  Namtok Chedsaonoi has 7 levels shortly waterfall, each levels about 2-5 m height, the stream flows witharm like a wild pool. There are the shallow pools can play, the most beautiful level is on the fourth, especially in the month of November-April, because of clear water and safety for the tourists; with not torrential stream as May-October

Muak LeK Stream  the river with stream all year-round, along the river takes distance about 15 km.

Tree tunnel  Tree tunnel, is the beautiful astonishing scenery on highway number 2089, on the west of the area. Tree tunnel occurs from the covering of tree crown along parallel road bring the pleasant and the beautiful to the tourists. Moreover found 2 waterfalls in the west of the area, first highs about 4 m and the second is about 20 m, ËéÇÂáÅé§ is the source of this both waterfall which has waterway only in rainy season.

Men's restroom    There are toilets for men.

Women's restroom    There are toilets for women.

Camping site    National Park provides campground and restaurant for tourists.

Parking    National Park provides parking lot for visitors.

Food services    Restaurant is available in the Park.

Soft drink kiosk    Coffee/tea/soft drink Kiosk can be found in the park.

Visitor center    Visitor Center is open daily from 8.30 a.m. to 4.30 p.m.