A Legacy Born From GenerositySome of the best things in life really are free, and Henry Vilas Zoo proves that point beautifully. That promise has been honored ever since, making Henry Vilas Zoo one of roughly ten free-admission zoos in all of North America. That is exactly what the Arctic Passage exhibit at Henry Vilas Zoo delivers, and it does so with impressive flair. Children’s Zoo And Family FunThe Children’s Zoo section of Henry Vilas Zoo operates on a simple but brilliant philosophy: let kids get close, get curious, and get a little messy. The Wisconsin Heritage Trail at Henry Vilas Zoo delivers that kind of grounding, perspective-shifting experience.