Lying in Nakhon Sri Thammarat Province, Khao Nan National Park is a part of Krung Ching Sub-district, Noppitam Sub-district and Talingchun Sub-district, Thasalar District, and Khaonoi Sub-district, Theparat Sub-district and Plian Sub-district, Sichol District. The park consists of high mountain ranges and productive rainforest which is the source of the important rivers in the Province. There are valuable floras and wonderful natures such as Nam Tok Sunanta (Nam Tok Khao Nan), Nam Tok Krungnang, Nam Tok Klongpean,Nam Tok Kradai and Krungnang Cave etc. The park is 436 square kilometers.
The Park consists of complicated mountain range along north and south. The important mountains are, for examples, Khao Nan Yai, Khao Nan Mia, Khao Lek and Khao Chong Lom. Khao Nan Yai which is about 1,438 meters above sea level is the highest. The park is a part of Nakhon Sri Thammarat Mountain Range. Most of the area is productive rainforest which is the main source of the river in the area, and the habitat of many kinds of wide life, and valuable floras. There also is the rich source of minerals, for examples, tin, barite and wolfram.
The waterfall consists of seven levels, each of which has differently natural beauties. Especially at level one which is high about 80 meters. It locates in Pakjao Village, Talingchan Sub-district, Thasalar District, Nakhon Sri Thammarat Province, and 15 kilometers from 110 Kilometer Stone on national road number 4041. There is a tarmac road extended to the waterfall.
Krung Nang Waterfall
The waterfall locates in Suanprang Village, Krungching Sub-district, Thasalar District, Nakhon Sri Thammarat Province. Travel on foot 5 km. from Suanprang Village.
The waterfall consists of seven levels, each of which has different name, for examples, Hnanaret, Hnanchangtok, and Hnantoui. The important feature of the waterfall is deep pond and stream which has beautiful rocks and boulders surrounded.
Khlong Phian Waterfall
Khlong Phian Waterfall or Yang Daeng Waterfall, There is wonderful stream which has big rocks and boulders everywhere. Traveler can travel on three-level side walk.
Khlong Prao Waterfall
This is a very beautiful waterfall. The water flows along the small steps of wonderful rocks to become the source of Klongguy (Guy Channel).
Nang Chong Fa Waterfall
Nang Chong Fa Waterfall consists of seven levels, the waterfall is a very beautiful waterfall in Khao Nan National Park. Travelers have to travel on foot only. If travelers want to see all of seven levels, they may take overnight trip there.
Khao Dai Waterfall
It is a very beautiful waterfall that travelers have to travel on foot to get there.
Consisting of many strange-looking stalagmites and stalactites, it is a cave that has stream runs through it. The special thing of the cave is that it consists of more than five level of waterfall inside. Travelers have to walk through water all the way. Many bats also inhabit there. The cave is well appropriate for studying the source of rock.
The unique feature of this cave is that there is a big stream runs through all the year round. The entrance of the cave looks like a big mirror which is wonderful and strange. At the front of the cave lays a big stream and deep pond fitting for playing water. There is a limestone cave which has no water called Hang Cave (Dry Cave) nearby.
Luang Cave (Tham Luang)
At the floor and ceiling of the cave contain the perfectly beautiful stalagmites and stalactites. Especially on the floor has many circle rocks which local people call "An Arrow of Khonthorn>/b>".
Krung Nang Cave
The cave is four kilometers from Krung Nang Waterfall. It has beautiful stalagmites and stalactites. Many bats also inhabit there.
It is the view point for watching for the sun rises from the Gulf of Thailand and enjoying the lights from fishing boats glittering like stars at night.
Khao Nan Trekking Trail
It is the go-on-foot traveling for studying nature of the productive forest on Khao Nan Mountain which is 1,438 meters above sea level. Traveler will find the productive forest and many kinds of animal. At the top of the mountain cover by moss and fern, and has strange-looking plants. The weather is cold and has much humidity all the year round.
Bua Chak Yai Nature Trail
It is the road that traveler can find the beautiful nature of “Bua Chak Yai”, which is the primeval fern aged about 230 million years. It is normally found at 1,000 meters above sea level but it is found at only 300 meters above sea level here.
Elaleriospermum Tapos Forest Nature Trail
There is a cluster of Elaleriospermum tapos about 6.4 - 8.0 square kilometers. On February to April, the Elaleriospermum Tapos will give its new red leaves contrasted with the old leaves very beautifully. Its fruit can also be cooked in many kinds of food.