I'm usually there from an hour and a half to two hours. This last time was about 4 because they dug in the sand and used the play ground for so long. I take my sisters 4 kiddos. They're all under 6 years.
Hour to 3 hours works. Depends on the kids
The fun thing is that there are multiple trails and activities. It depends on the kids attention span. We can easily spend four hours with our six and two year old.
Around an hour and a half for the museum, they do also have an outdoor dinosaur themed playground.
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