TThe easiest way to get to the park is through an arranged service from Kuala Lumpur.
Alternatively, to do the trip yourself, first take a bus or a train to Jerantut (RM19 from Kuala Lumpur), and then take a taxi from Jerantut to the jetty at Kuala Tembling, costing RM16.
The river boat leaves from the jetty at Kuala Tembling at 9AM and 2PM for Kuala Tahan. The 60 km journey takes 2-3 hr, and costs RM35.
Or for a cheaper option without the boat, take the public bus from Jerantut directly to Kuala Tahan for RM7 (5:30AM, 10AM, 1PM, 5PM). Although smoking is not permitted on buses some passengers may still do so. Politely ask them to stop if it is causing you discomfort.
NKS buses are more expensive than public transport though they can be a useful option if you are on a tight schedule or would prefer assistance with organising your trip. The NKS websites may not be working but you can contact the Jerantut office at Hotel Sri Emas or phone ☎ +60 9 2601777, +60 2601773, +60 2664488, or +60 2664499. There's also an office in KL at the Hotel Mandarin Pacific (Petaling Street, Chinatown), ☎ +60 3 20720336. Also try comfortable booking via [1] - 75 inludes bus from Kula Lumpur Mandarin Pacific Hotel (China Town) via Jerantut to Kuala Tembeling as well as the final boat trip to Kuala Tahan.
A taxi can be taken directly from Jerantut to Kuala Tahan which will take 1 hr and cost MR70. Ensure that the price is understood prior to departure.
If you have your own transport, you can drive to Kuala Tahan; although you would miss the river boat trip, which is an important part of the experience. Parking is available at the hotels. From East Coast Expressway, exit at Temerloh and proceed to Jerantut. You will reach a T-junction. Turn right to Kuala Tahan - 75 km). The journey is a 3.5 hr from Kuala Lumpur. There are plenty of roadsigns so you shouldn't get lost