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Day hike. Takes you through an ancient mossy forest (~1½ hr to Jasar). As of May 2019, the trail to the summit is open, though you apparently need to walk across the cement at the base of the radio tower to pick the trail back up on the other side (to your right). After the summit, the trail continues northeast along a ridge (right along the boundary between Pahang and Perak states, in fact, as testified to by official markers along the path) and drops you at a power station, where you have to walk around the outside edge of the fence to get to the road. It's a bit of a walk to get back to town.
The first half of the trail to the summit is wide and easy to follow, except for the confusing part near the radio tower, but has some quite steep sections (no ropes or climbing necessary, just scrambling up tree roots). The second half, from the summit to the power station, isn't steep but does have some narrower, semi-overgrown parts. There are also a few potentially-confusing forks in the path here, but pay attention to the markers other hikers have left and you should be fine. Near the end there is a side path leading steeply down to the right, marked with two yellow ribbons, which may or may not be a worthwhile shortcut down to the power station.
© OpenStreetMap contributors
Terrible view, all the river is full of rubbish. There are two ways to get to the waterfall: you could either start from the Forestry Department or take Trail 4 which is at the side of the Century Pines Resort. If you opt for the former, you should reach the falls in less than an hour. For the latter, the journey is about 15 min.
easy
Easy and mostly paved trail to the Parit Waterfall, though as of May 2019 there were a few small fallen trees across the path. The river and the waterfall are nothing to write about except that they are filled with garbage. Can be a nicer way than the road to go back to Tanah Rata after Trail 3. A small part of the trail looping around the waterfall is closed due to a damaged footbridge at the Cameron Highlands Montane Park, but you can just take the other way (to the left of the closed bridge if you're coming through the park).
Agro-technology Park
Research and educational center. Mardi is home to 40 varieties of roses, 10 strawberries, 100 citrus fruits and exhibits a rich collection of hydroponic technique for agriculture. There are a couple of cafes inside. Trail 5 starts here.