This is a very small, family owned zoo that is off the beaten path. Most likely there just isn't enough interest during the week to justify the costs of being open. But they do allow large groups to book the zoo during the week for field trips, birthday parties or private tours!
It is a hourly guided tour and I would imagine they would be doing yours for too few people at times. I live in Hesperia and most people are not even aware there is a zoo
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