I had my first dives there last weekend (LongDong #2 for a warm up, then 82.5KM, and 2 dives at the Canyons on Sunday).
The Canyons was great, even though viz was crap. The trail down the hill is actually piss easy, much easier than climbing down the boulders at 82.5KM. It was then an easy walk along reasonably flat rock (after staggering across the sharp lava rocks in Kenting ANYTHING is now easy). I think we did the entry, then right, circle around and back up through the canyons.
The first dive we went down to 30m, but I though that was a waste of time and air. Very poor viz, and just a lot of sand and rocks. Maybe it is better when the viz improves. However, the canyons themselves, starting at about 20m and up, were amazing. Never seen so much color in LongDong!! Lots of fish doing their thing in the narrow canyons, and SO MANY fans and soft coral growing on the rocks.
At the time I did not actually think much about the current, but when I checked my dive computer after the dive I noticed that I did ascend WAY too fast to 9m)
The second dive we went the same way, but stayed around 20m and just circled around the canyons, awesome dive.
The Bay (LongDong #2) is an easy dive, I am thinking about getting some spare air and doing it solo, most of it is only about 6 to 10m deep).
Also, note that the water temp on Sunday was 20C at about 5m, and 18C at 15m to 30m. I was wearing a 3mm, no hood, and felt reasonably comfortable (could be the 15KG of extra fat I carry around??). I am definitely looking forward to warmer water, but as long as the waves stay down (and it was FLAT last weekend) I am very happy to continue diving.
I am free for dives during weekday mornings only, and my best day would be Tuesday morning. I can pick-up and drop-off at Keelung Train station if anyone needs transport (I only have a little Nissan March, so can take one person with gear comfortably, and 2 VERY uncomfortably).