Can you buy bags of ice at the park? If not, where is the closest place to buy bags of ice?

Ice machines a couple of stations in Marathon plus bagged ice at Winn Dixie and Publix Supermarkets.

Yes but they run out of ice most of the time

Yes. It's $3 a bag.

There is a twice the ice in the ace hardware parking lot about 2 miles away $2 for a 20pound bag

There’s nothing to buy there , however u can purchase at the closest city to the park not too far from the park