I actually do bring in a cooler with water and Gatorade, you just cant bring cans or any type of bottled soda. I just went this past Sunday and that's what we took in, and I go in every year with the cooler. All this info is for knotts soak city.
You can bring water and a few snacks no coolers. There's picnic tables outside if you want to leave a cooler in your car.
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