Three hours to do everything. Make sure to get a hotdog. They serve Vienna beef dogs. The best.
If you want to feed the animals then 2 hrs. This ticket is valid for a day, if you are planning to visit other places you may come back after 2-3 hrs.
2 hours is good. Unless the car in front stops at the gate to feed the animals and they all swarm the area so you can't move.
Can go thru more then once for price of admission
An hour or two. After or before the driving tour you can go to the gift shop, walking tour, ride a camel or pony, see and hold reptiles and also grab a hot dog/hamburger and ice cream.
Depends how many times you stop to feed the animals. It took about 45 minutes for us as we ran out of bread. ( 3 loafs). You may go through the park as many times you want.
At least a couple hour's but your pass is good for all day if you choose to stay
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