Have the 'bear' hats not made it to the cooler regions down under yet then? Pretty widespread female winter headgear option in Europe these days - I'm sure they'll reach the colonies eventually!
It is a huge cave (that is kept at 7° celsius) and you can walk in it. The penguins can't get on the visitors pathway, but they jump sometimes on the rocks at the edge of their exhibit.
So it is a kinda walk-through exhibit.