It might just be the angle of the photo, but this doesn’t look TOO small for Brown Bears. It’s not large by any means, but it appears to be at the very least serviceable.
@Dhole dude It might be just about adequate, but in comparison to the Brown Bear exhibits at Kolmarden, Boras and Scandinavian Wildlife Park, all three jaw-droppingly world-class, then it came across to me not much better than an old-fashioned grotto. There were three bears in this Copenhagen exhibit.