A few hours is good.
Everytime I've gone there I've spent the entire day there...and I mean the ENTIRE day!!! Unfortunately they're only open until 5pm because I would definitely stay longer but at the same time I appreciate that they open late (10 am) and close early (5pm) because the kitties shouldn't have to be exposed to the public constantly!!! Have fun! You'll love it!!!
An hour
If you're going to do a self-guided tour then an hour would probably be plenty, if you are going to participate in the feedings then add an additional say 20 minutes to each one. ( They do cost extra, but still fun). If you were going to do a guided tour then I would allow two hours. It is a relatively small place but very cool. a definite must-see, I know I will be going back and bringing more of my family. They really are doing amazing things for the animals that are there. ( I do recommend the guided tour because you get to learn a lot more about each of the animals)
Minimum hour or so
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