Ok, here goes:
By car from Taipei on the 1st Freeway:
Take the freeway south to the highway 66 interchange…Take the eastbound exit and follow until it ends, taking note that about 1km before the end, the 66 splits…Stay in the right hand two lanes. Then after about 300meters get on the Second freeway heading south, and take the following exit (Longtan interchange)
By car from the second freeway:
Take the Second freeway south to the Longtan interchange.
From there:
Turn left under the freeway, and go about 500meters to the first major traffic light. You’ll see signs to Shrmen dam here. Turn left, and follow this road until it ends. It’s about 5.5km, so be patient. Turn right.
Next part is critical, so read carefully:
After the right hand turn, you’ll climb a gradual hill, crest it, and go down for a couple of turns and then level out for about a total of 3km driving. Right where the road begins to climb again, you’ll see a road on your left, and you should be able to make out the brown Kunlun Gardens sign, with a temple on your right. Turn left here.
It’s a fairly steep narrow road, and there is a false split about 200meters in…ignore it, and stay to the left (obvious). You’ll also pass an entrance to some kind of theme park that you’d think would be it. It’s not. Ignore this as well, and go up another 1km or so…The entrance is on the right. Drive up to the parking lot, and pack up whatever you need. You’ll be walking from here. The trail starts at the rear left hand side of the parking lot and takes about 20 minutes to complete. It’s steep in the beginning.
By motorcycle from Taipei:
If you know your own route to Tashi then ignore this section…I prefer to take Roosevelt Rd into Shindian and take the right over the bridge at Bitan lake (Ankeng Road?) Cross over the bridge and this becomes the 110. Honk loudly when passing Sandmans house, and continue through a congested area which will open up onto a pretty decent country road all the way until it hits provencial highway 3. Turn left towards Sanshia. Ride 2 or 3kms and you’ll see a turn off to Tashi on your left. Take it. Follow this road all the way into downtown Tashi (about 9km) until you see the traditional city gate entrance on your left. Turn left here, and follow this road all the way to the entrance of Shrmen dam. Once you get there, the road narrows and splits. Take the right fork, cross the long bridge (nice view of the dam from here)and then a long hill which will end up at a T-intersection.
Go straight through it, and you’ll climb a gradual hill, crest it, and go down for a couple of turns and then level out for about a total of 3km driving. Right where the road begins to climb again, you’ll see a road on your left, and you should be able to make out the brown Kunlun Gardens sign. Turn left here. It’s a fairly steep narrow road, and there is a false split about 200meters in…ignore it, and stay to the left (obvious). You’ll also pass an entrance to some kind of theme park that you’d think would be it. It’s not. Ignore this as well, and go up another 1km or so…The entrance is on the right. Drive up to the parking lot, and pack up whatever you need. You’ll be walking from here. The trail starts at the rear left hand side of the parking lot and takes about 20 minutes to complete. It’s steep in the beginning.
By car from down south:
Take the 2nd freeway heading north, and once you pass the Kuanshi exit, and start climbing, watch for the rest stop area. I’m giving you a local shortcut that will save you 30 minutes on the drive, so read carefully or you’ll miss it.
Once you pass the rest stop exit, the next stop will be the Lungtan toll gate. Get in the right hand lane well before there. You’ll pass a truck weigh station and once you do, there is a tiny road going off to your right with a one way sign against you. Ignore it. Go up and follow this road to a flashing red light. Across and to the right there is a 4 lane highway…Take it. Follow this to the first intersection (large one) and go straight through it. You’ll follow this road for about 2km and you’ll descend for about 1km. Just at the bottom, you’ll see a road on your right, and the sign for Kunlun Gardens. Turn right here.
It’s a fairly steep narrow road, and there is a false split about 200meters in…ignore it, and stay to the left (obvious). You’ll also pass an entrance to some kind of theme park that you’d think would be it. It’s not. Ignore this as well, and go up another 1km or so…The entrance is on the right. Drive up to the parking lot, and pack up whatever you need. You’ll be walking from here. The trail starts at the rear left hand side of the parking lot and takes about 20 minutes to complete. It’s steep in the beginning.
By motorcycle from down south:
Take the provencial Highway 3 North, and once you pass through Kuanshi, you’ll cross under the Freeway twice. After the second time (you’ll be climbing a gradual hill) keep an eye out for a large 4 way intersection with a Formosa gas station on your right. Turn right here.
You’ll follow this road for about 2km and you’ll descend for about 1km. Just at the bottom, you’ll see a road on your right, and the sign for Kunlun Gardens. Turn right here.
It’s a fairly steep narrow road, and there is a false split about 200meters in…ignore it, and stay to the left (obvious). You’ll also pass an entrance to some kind of theme park that you’d think would be it. It’s not. Ignore this as well, and go up another 1km or so…The entrance is on the right. Drive up to the parking lot, and pack up whatever you need. You’ll be walking from here. The trail starts at the rear left hand side of the parking lot and takes about 20 minutes to complete. It’s steep in the beginning.
Holy crap, if you can’t make heads or tails out of my directions, then send me a PM.
Hope to see you there 
You do