Gunung Gereh, Bliah, Bieh

Distance: 65km
Elevation Gain: 3,800m
Rated: 9.0/10

Gunung Gereh, G11 - Gunung Bilah, G14 - Gunung Bieh, G16, aka, Gunung GBB, a very long hike and typically take hiker up to 4 days to complete the whole route. This route is not known for its view but it beautiful mossy forest and this route actually shared the same trailhead as Gunung Ulu Sepat, so yes, you will be sitting in the same 4WD from Masjid Bawong all the way to Pos Kemar.

To get to the 4WD pick-up point, use "Masjid Bawong Perak" or "4.996597, 101.140228" to get here. We parked our car outside the mosque. There is basic public facility in the mosque but since it a mosque, please respect the area. For the hike, a permit is definitely needed but a guide is not mandatory. It is still preferable to bring someone who knows the route as the trail is not marked clearly.

Around 60km into Pos Kemar from Masjid Bawong
GPX File link: https://www.dropbox.com/s/1ffjlmnh2e1t18j/Sg%2C%20Siput%204WD%20to%20Pos%20Lelar.gpx?dl=0
We parked our car at Masjid Bawong but left the fresh cloth in the car for after the hike. Why not bring it in and change in Pos Kemar? The reason being as you will have to sit back the same 4WD to Masjid Bawong, you are bound to get dirty in it, so why bother? But we did bring in stove and gas and food for after hike makan. 

After roughly 2:30 to 3:00 hours of bumpy ride, we reach the trailhead and left some of our stuff at the kampung, pack our bag and start our journey. Also note, at the trailhead do have some basic facility like toilet but as always, please respect the orang asli around the area.

The starting point of GBB

If some would notice, yes, it exactly the same route like starting Gunung Ulu Sepat. In fact, the same route goes all the way for 7.2km before you will reach a junction separating GBB & Ulu Sepat. 

https://www.strava.com/activities/2342652562
GPX File: https://www.dropbox.com/s/o4hhjxw6l7079c6/Trans_GBB.gpx?dl=0
Before the junction, the trail is mainly quite flattish upward and it actually quite similar to Yong Yap first 6km and just like Yong Yap route, you will reach a campsite after 6km. I forgot the name of the campsite already but it has a nice river to the side of it. You will have to cross this river to continue your journey. There actually plenty of rivers you will need to cross but it won't be as much as the Yong Yap trail.

A Camp Site (6km)
Camp Site at 6km (Camp Sungai Y??)

After the campsite, not too far ahead or 1.2km later, you will finally reach the junction for Ulu Sepat & GBB. Here, turning left will bring you to Ulu Sepat, so turn right up to GBB and start your steep climb up your first huge false peak, Puncak Bongok...

7.2km into your hike, this is the junction that separate GBB & Ulu Sepat.

The climb to Puncak Bongok (8.5km) can be quite tricky as there is quite an amount of fallen tree. One really have to take note when coming down in the dark on this part of the trail. After 1.3km of steep climb, you will reach the peak and you will walk along the ridges until you come to a steep downhill at 9.5km. It a very steep downhill and can be slippery when wet. This downhill is something you will have to take notes as to when you come back, you going to have to climb 300m in 2km... Can be hellish after a long climb....

Puncak Bongok
After the huge false peak, you will reach Camp Sungai Agek (11.5km). You can choose to refill your water here or hold up for the next water point which is 5.5km away.

Camp Sungai Agek

Camp Sungai Agek


Camp Sg. Agek

[Note: Pos Agek has been updated recently, go to the end of the page for the update.] Right after Camp Sungai Agek, you will pass by some overgrown lalang and you may have to watch where you go as there are some small junction in between. After that, you will hit a big junction where your left will be a wooden gate. Turn into the wooden gate and you will see a orang asli hut.

Wooden Gate 
Around the orang asli hut
Around the first Rumah Orang Asli

One of the very few views along the hike, the second Orang Asli Hut is here
If the path is correct, you will see the view as like the picture above

The trail around the two huts can be a little bit confusing and it will be worst during the night. One has to really take note of where he/she is going during these two parts of the hike. 

After around 2 hours, you will reach Camp Perodua (17km), this will be sort of your last waterpoint. We refill full bottle here and start our push to Gunung GBB.

(You do have another waterpoint which is on the way to Gunung Bilah but it far and yes, you can go Bilah first, but if you are day-packing, it much less mentally tiring if you do Gunung Gerah and Bieh first)

Camp Perodua

Camp Perodua

Camp Perodua

Some view along the way

Do take note that after 2km from Camp Perodua, there is a junction where you need to turn right. (This is also the trail where you will start hiking along the boundary state.)

Junction point 2km after Camp Perodua


There is one more campsite in between Camp Perodua and GBB-Junction but since there no water-point here, we did not stop here and cause of that, I have completely forgotten the campsite name 

(Now I remember is Camp Sarsi, nearby has a Last Water Point which is before you reach Camp Sarsi but it a distance just to get to it).

(Note: if you are using the attached GPX File, you will notice we took a wrong turn at roughly 22km. The path toward both ends was clear and it did look like a proper trail, but one was going downhill all the way whereas the correct path is supposed to be flatter as you are walking along the mountain ridge here.)

There is a false peak "campsite" at around 26.4km, walk down to your right and head to GBB-Junction.

False Peak
After all that nonsense and 9 hours later at 27.8km, you will finally reach GBB-Junction. The signboard is will not be in your line of sight when you come up but there is a very clear split path where one goes down toward Bilah and another is more flattish toward Gerah-Bieh

GBB-Junction
You can choose to do Bilah first and get your water here, but if you did carry enough water up, it definitely better to do the double mountain combo first as we found this path more tiring than just Gunung Bilah. [Huge note: the water between Bilah and Junction Point is very brownish when it is not raining. Can't judge whether is clean to drink or not. During the 2019 daypack, it was raining so the water was cleared.]


Gunung Gerah (28km)

This is Gunung Bieh in the daylight.

Gunung Bieh (30km)

Gunung Bilah (34.2km)
If you can time your hike correctly, it would definitely be much better to reach these three peaks during the daytime. Even with just our headlamp,  we can definitely tell the mossy forest is very beautiful, it just a shame that the daytime didn't last very long.

Overall, the hike may not have a lot of up and down as to compare to Trans-Titiwangsa trail but it is very long and can be mentally torturous especially when you are coming back since you have to climb back up the steep Puncak Bongok just to get home... Time it nicely and you can definitely witness GBB beautiful mossy forest.

Time Log for this hike:
4th May 2019
9:10 - Start
10:20 - Camp Sungai Y? (The first campsite)
11:20 - Puncak Bongok
12:00 - Camp Sg. Agek
13:45 - Camp Perodua
16:50 - False Peak
17:45 - GBB-Junction
18:16 - Gunung Gerah
19:05 - Gunung Bieh
21:10 - Gunung Bilah
22:00 - GBB-Junction

5th May 2019
2:00 - Camp Perodua
5:00 - Camp Sg. Agek
8:40 - End of hile

Food I brought along:
1. 7pcs bite size snicker
2. 4pcs hutanration choc. bar
3. 2pax Extrajouss mix with river water
4. 2pcs Salt Pill Chew
5. Apple
6. 4L water (2L river water) 


Other info:
4WD SOS: +60 13-487 8380 (Kay) or +60 12-531 7141 (Muzs)

Last update:
22/5/2019

Update on 22/5/2022

From Camp Sg. Agek, following is a new rough map around the kampung:
The first Kamping Orang Asli Hut

The wooden gate is not there anymore and most of the area is quite cleared out already.
The last hut


There is still lot of lalang between this river and the last hut (with Satellite Link Antenna) but the trail is much better when we hike.

The first kampung orang asli hut



Trans-Titiwangsa V1 (via Ulu Kinta SAS Dam)

Distance: 37km
Elevation Gain: 3,650m
Rated: 8.5/10

Trans-Titiwangsa V1, a hiking trail which covers 3 of the tallest Peninsular Malaysia mountain. Gunung Korbu (G2), Gunung Gayong (G4) & Gunung Yong Belar (G3). Typically, most hiker will start their hike from Yong Belar side as it will make the hike easier. Since Yong Belar elevation is much higher compared to Korbu trailhead, there would be much less elevation gain from Yong Belar. The hike usually takes 4-5 days.

However, to start from Korbu side first, things do get tougher as now you have to climb Korbu first before proceeding to V1 route. Also please note, when doing V1, there won't be any water source between LWP of Korbu to Camp H2O which is after coming down from Gunung Junction!! (there is one at Camp Cerek but it will take you 20min down for it, so avoid it at all cost!)

The trail here is quite open but not very well marked. Some part of the trail can be quite badly overgrown and plenty of thorns, especially around Camp H2O. 

The hike from Korbu to Gayong is covered in this blog:

https://www.strava.com/activities/2235486066
GPX File: https://www.dropbox.com/s/fe9wstir3dgk7h7/V1_Dayhike_start_at_Kinta_Dam_.gpx?dl=0

After climbing the steep hill of Korbu, things just don't end as it is. Once you reach Gayong, u-turn and walk 5minutes to get back to Simpang Proton. Now the trail from here onward will get a little rawer and having a good navigation skill is really a plus (yes, there are markers along the route for V1 but is not often as compare to KorGa route)


I don't have a picture of Simpang Proton, but here a reference
Once at Simpang Proton (15.7km), there will be a junction to your right and it usually closed off with a few pieces of wood as this is to prevent hiker who only doing KorGa from accidentally going into V1 route. Here, turn right and start heading to Camp Cerek which is around 30-50minutes depending on your pace. 

Camp Cerek
As mention, there is a water point here but unless you are camping here, it is best you avoid it at all cost as it a 20minutes walk DOWN, so you going to need to walk back UP after that! 

From Camp Cerek (16.7km), just head straight to your next destination, Gunung Junction and this is where the fun begins too! The constant up and down will be mental torture if you are not well-prepared for this route. After a series of up and down (mainly down), you will start to climb back up the steep route of Gunung Junction where you will literally have to pull yourself up against the tree root which is similar to the last part Yong Yap route.

Once you reach Gunung Junction (19.5km), you can choose to rest here or if you still have daylight, do continue on another 10 minutes to reach Junction View Point where you will have an unobstructed view of the Titiwangsa Mountain Range!

Gunung Junction

Gunung Junction

Gunung Junction
Junction View Point (Roughly 10minutes away from Gunung Junction)

Junction View Point


After Gunung Junction, now it a very steep downhill toward Camp H2O. Be warn, it is very steep and slippery when it rain (if you come from Yong Belar side, climbing this part of the Gunung Junction is going to be your most hellish climb!) After roughy 2 hours or more, again depending on your pace, you will finally reach Camp H2O. Before Camp H2O, you would come across a beautiful "mini-waterfall garden" if you still have daylight.

Camp H2O (22.5km) is a camp site where we took our dinner and quite a long rest here. Eat and drink as much as you can from the river here and refuel to the max! As from here onward, it going to be a long climb up to Yong Belar. It not as steep but very long!

Camp H2O

Camp H2O Site

Once refuel, cross the river and start the climb up to  your next check point which is Camp Kuali. Also note, 40-50 minutes climb up, you will reach Puncak H2O first. After that, less than an hour, another camp site which has no name to it. Altogether, there roughly 2 big false peak (The first one is known as Yong Belar false peak and it view here is very nice too! The second one has a big border rock.)

Puncak H2O
Puncak H2O

Yong Belar False Peak View

After all that up and down climb, you will eventually reach Camp Kuali (27.5km). There is water point here and you can refill here as the next water point will be Camp Periuk Tudung at Yong Belar (Camp Kasut have too but also required to walk down to it and tend to be avoided)

Camp Kuali
Camp Kuali
After Camp Kuali, this will be your last big climb up to Yong Belar peak (28km), which is the last peak of the route. You do reach a junction first before heading to the peak so do take note not to take the left turn first as you will miss Yong Belar peak!

Yong Belar - V1 Junction
The junction is not obvious especially in the dark, so please take note!

The hike of Yong Belar is covered in this blog:

For the reversed version, basically is just the reversed of the this whole blog. The only different now is that you do not have climb the steep Korbu and the never ending uphill of Yong Belar, instead it all downhill plus the climb to Yong Belar is consider easy. The only tough section will be the climb up from Camp H2O to Gunung Junction as you will be carrying full load of water and it a very steep uphill with plenty of section require you to pull yourself up against the tree roots!

The video below belong to our Trans-Titiwangsa V2 but part of the V1 route can be seen in here too for your reference.



The total hiking distance may look short but because the trail technically, be prepared for what can be a long hours of hiking in the forest. The trail may not very raw and can be actually quite clear, do take care as tiredness can cause you to take the wrong route unintentionally!

Whether you are camping or daypacking this route, is definitely an achievement for anyone who can complete this route!

The time log for this hike:

10:00am - Start hike
2:00p      - LWP (Really the Last Water Point, please refill here)
3:00pm   - Gunung Korbu
4:15pm   - Gunung Gayong
6:00pm   - Gunung Junction
8:00pm   - Camp H2O (Water Point) (30min rest)
1:00am   - Yong Belar Peak (slept at Y.Belar False Peak and Camp Kuali 30min each)
6:00am   - End of hike (Camp Cabin/Kebun) (slept somewhere in the middle for an hour)

(20 hours)

Food I brought:
5 long Snicker Bar
4 Hutan Ration Bar
3 Extrajouss pax
1 Salt stick pax
2L water capacity

Some info:
Van transferred from Masjid Loijing to Korbu: +6013-385 2002 (Padil) or +6013-352 2991 (Syafami)
4WD into Yong Belar: +6017-318 5171 

Last edited: 25 May 2019