Both places are in the same location. I'm not sure about the ticket cost. We have a season pass. It pays for itself if you go a couple of times. Parking is $10.00. Free parking with season pass.
I went with my boyfriend last week (beginning of October) and it was $46 and some change. The aquarium was very small and underwhelming. It took us no more than 2 minutes to walk through. I'm from Fort Wayne, and our zoo is better than that one (and ours isn't even advertised). The Indianaplois zoo had a dolphin show, which is one of the coolest features I have ever seen at a zoo. I'd recommend that if if an aquatic zoo interests you. Otherwise I would suggest just going to an actual aquarium.
The Aquarium is included in regular admission tickets. However according to the website - "Columbus Zoo/Zoombezi Bay 2-Day Ticket - Currently unavailable"
It is $10 to park. And $23 per adult. I don't know whether they have a two-day pass or not
Tickets to the zoo was $23 per person.
$12 for kids. $17 for adults $5 surcharge if you live outside Franklin county
Not sure about 2 day admission but 1 day for non County residents is $21 plus tax
It was 44.00 for adults with a 14.00 ride pass for rides in zoo and at water park.. but not including water rides.
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