I got lucky to see her running around after several months of relative inactivity (according to a local friend) she had several short bursts of activity in which she swam out of the den and ran around on the island a little bit. Sadly, it's so dark in the exhibit this was the best photo I could manage.
I think yapoks will be much more present at the aquarium in the future. This invidual has been around longer than all the previous ones had been, so I believe they've cracked the animals' husbandry. I certainly hope they continue to do well with them in the future!