Located in the district of Tambunan and is about 20km away to the north east of the district on the Trusmadi Range; Mt. Trusmadi at its height of 8,669ft, is the second highest mountain in Malaysia. There are two main features of Mt. trusmadi, i.e. the endemic Nepenthes Trusmadiensis was only found here and seeing the view of Mt. Kinabalu from here. The view was said to be the best in Malaysia. Other species of nepenthes like Nepenthes Lowii and Nepenthes Microphylla, many species of rodedendrons and orchids are found here in Mt. Trusmadi. A 3 days 2 nights expedition journey to trek Mt. Trusmadi from Tambunan is the most perfect duration. A forestry permit is needed.