I was surprised to find that there not only were there a couple of parties ahead of us, but also a large commercial party that had come in at the lower entrance point. I guess it's the easy access that makes it popular.
Serendipity itself only takes a couple of hours which is then followed by an easy but lovely couple of hours float downstream through Wollangambe Two.
After a short downclimb we got to a large area just above the second abseil which is where the commercial party entered the canyon with around 10 pundits.
If you take the exit back up the ridge then I'd rate this canyon as Meh! But if you choose to go downstream to the Wollangambe 2 exit it adds a really nice couple of hours floating and jumps and lots of fun along what is probably my favourite part of Wollangambe.