Within  the  greater  expanse  of  Gunung  (Mount)  Inas  Forest  Reserve  and  where  Sungai  (River)  Sedim  cuts  through,  this  ecotourism  recreational  park  has  the  world’s  longest  canopy  walk  or  Tree  Top  Walk  at  the  time  of  its  completion  in  March  2005.  It  is  situated  a  short  distance-off  the  laid  back  kampung  or  village-like  town  of  Karangan  and  a  mere  30  minutes  drive  from  Kulim  town  centre  following  the  road  through  the  Kulim  Hitech  Park.

The  mature  virgin  rainforests  known  as  the  lowland  dipterocarp  kind  are  located  on  well-drained  undulating  terrain  at  the  foothills.  They  make  up  the  bulk  of  commercially  important  forests  in  the  country.  They  are  also  an  amazing  accommodation  for  thousands  of  species  of  known  flora  and  hundreds  of  species  of  fauna.

In  the  cool  and  serene  atmosphere,  the  recreational  park  is  created  for  visitors  to  enjoy  the  natural  beauty  of  the  evergreens,  study  plant  species,  listen  to  bird  and  insect  callings  and  rejuvenated  by  clean  air  and  refreshing  sounds  of  gurgling  waters  at  the  rapids  in  Sedim  River.

 
The dense forests can often consist up to 100 species of trees, shrubs, herbs and climbers in an acre. The upper or emergent storey is usually about 100 – 150 feet (30.5 – 45.7 m) tall, there are those above 200 feet (61m).
 
‘Bridge in the jungle’ – this canopy walkway spans 925 m in a loop through the trees and crossing the Sedim River twice. It stands at heights ranging between 26 – 50 m above ground level and is made of galvanised steel, one of the very few of its kind in the world.
 
The energetic Sedim River cuts its way through the rocky forest floor from its source up in the hill. In the wet equatorial climate of Malaysia especially during monsoon seasons, the river often swells to a much fuller volume than this in the dry season.
 
Rushing waters across rapids in a continuous stretch of 15 km distance make the river a good venue for adventurous white water rafting. The shrub level of the jungle are often thick and dense, here they are opened by the river.
 
The main or second tree layer (storey) forms the continuous canopy except immediately below the large and emergent storey trees. Their canopies occupy the space between 70 – 100 feet (21 – 30.5 m) and are usually young trees of the upper storey.
 
Reaching for light, an epiphyte searches its way upwards with help from a healthy young tree.
 
A mature woody climber twirls its way upwards. This part of the forests has been cleared for the benefit of visitors.
 
The forest flowers – bright orange blooms (left – middle ground) enhances the beauty of the forests.
 
Not so colourful flowers but they overwhelm with their large sprays all over the crown of the tree.
 
The flower buds of many Malaysians’ favourite beans – the petai hang in big bunches. The beans blend well and taste great with ‘sambal’ or grounded chillies with prawn paste and other complementary spices. Never mind about pungent smell in your mouth thereafter , they have many known health and medicinal values.
 
Flower buds or fruits? It is puzzling but there are many signboards that informs on the characteristics of the trees - not this one, though!
 
Enticing bunches of orange-coloured fruits (like little mangoes) hang across the bridge walkway.
 
The Kulim tree - its name adopted for Kulim town and district. According to the narratives; it produces medium-hard timber, has a strong garlic smell – detected as far as 20 m away and has fruits which have traditional medicinal value.