Cathay Pacific business class lounge, Hong Kong

Can anyone who has flown CX from Perth to Hong Kong with a 3hr transit time for the next flight tell me how far it usually is from arrival gate to the Pier lounge?

Unless you have a particular preference for the Pier (meet someone for example) I would suggest using which ever of the CX lounges is best located for your itinerary. 

I have just come through HKG and the walking distance depends on your arrival gate and the security screening points.  If you arrive on a 'pier' gate it is reasonably close , if you arrive on gates 1 or 15 it is about a 15 minutes walk.  We arrived at gate 28 (which is right in the middle and conveniently located just opposite the security screening at gate 27) and it took about 5 - 7 minutes to walk to the Pier business lounge.  

There are several transit points throughout the airport that allow you to go from arrivals (lower level) to departures (upper level) including one near to The Wing.
Keep in mind that The Wing is closest to gate 63 so when you exit your flight from Perth head that way and you'll see the transit point. I'm not sure if all transit points are open all the time.
If you need to use a different transit point then you will be in for a very long trip.

There are plenty of travelators and seats to help you on your way so hopefully you'll be able to make the trip without too much difficulty.

Some great advice here from the AusBT readers, especially with regards to transit points and the different Cathay Pacific lounges – thanks to you all for sharing your experiences!

This article will give you a better understanding of your options.

My preference has always been The Pier, or The Wing.

Ideally, find out which gate your next onward flight is at, and go to the lounge that is closest to it.

https://www.ausbt.com.au/hong-kong-airport-cathay-pacific-qantas-oneworld-lounge-transit-guide

Okay, I got 2 oneworld Emerald (QF Platinum One and CX Diamond) which get you access to spectacular The Pier First or cabana in The Wing First.

For business class lounge, strongly recommends The Pier Business near Gate 63 which looks like a first class lounge. If you want to enjoy some special cocktail and coffee with tarmac views, go to The Bridge near Gate 35 and mini-train station.

North America flights usually departs in Gate 1-4 or 15-19, which means you go to The Wing Business, Qantas Lounge (with oneworld boarding pass) or G16 (The renovation work should be done this year)

The timing suggests you are booked on CX136 & 838.  My experience of CX 136 has been it always arrives into gates in the 1-4 area.  Gate 4 a couple of weeks ago.  The Hong Kong airport website provides departure gate info - 838 has been at gates 28 and 35 in the last 2 days.  These are easily reached from the Pier.  You can use the train to get most of the way out to the Pier from the transit area near the arrival gate.  Even so, I wouldn't go to a lot of trouble to get to the Pier if the Wing turns out to be more convenient.

The Pier is the nicest, but the Bridge is a close second and the Wing is a close third. Just go to whichever is closest to your transit gate. If you arrive at gates 1-4 it is a real hike to the Pier or the Bridge, the Wing is nice enough that it isn't worth the walk. Avoid the Cabin. 

I see your earlier comment that you are on the A350 (nice!).  So looks like that is an additional service that connects to CX170 Perth.  Haven't done that one in a while so can't say where it arrives. Provided you a not on one of the first A350s to YVR you can check out the departure gate use on the airport website.

You'll want to check with the staff that the Pier is wheelchair accessible. Cathay's website doesn't say. The Wing is. I'm sure they'll tell you before you head over there.

The train drops you outside the Bridge, which would also be closest to gates 28-35, so you might just want to go there. 

If you do go to the Pier, I would say 15 minutes to get from gate 1-4 to the Pier via train and walking. Maybe a little longer with wheelchairs as you may have to wait for lifts. In transit, I'm often grateful for the exercise.