Camp grounds cabins they have tubes if your wanting to float down the river but a little cheaper if you bring your own state charges 6 $ to enter cash only unless you pay in advance they have a shuttle bus for a ride back it's an all day adventure or could be all weekend if your looking to camp
The park has a playground near the bathrooms at the South Entrance. That would probably be the most important info. The park has two entrances. Lots of trails and a great place for a cool swim or more.
I would call the state park. Their number is on their website. They may have some activities just for kids and they would be able to give you tips regarding your question. Their website is also very informative. There is a cost to get in so make sure if you're paying cash you have the exact amount or close to that. You can pay in advance by going to Florida state parks and paying with your credit card which I think might be easier. Just check the website out it will give you all you need to know. If not, you can call them.
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