I agree with blankets and firewood. You can buy wood at the campground store but it's a little expensive. You can pull your car pretty close to the campsites so filling a cooler with food and drinks is helpful so you don't have to run out and get something. I often precook meals and heat them up on a stove to make dinnertime quicker
Its gonna be cold the next several days so lots of blankets and fire wood would be good. Camp stove is helpful to make warm meals. Blowup beds are helpful to get you off the ground but not neccessary. Layers of cloths for cold are helpful. Smores and hot dogs are fun over fires. Bikes and maybe games. The springs are always 72 degrees so go swimming. They have restrooms near but to change in. Heater for the tent if you feel so inclined.
Not sure was just visiting there while on vacation here .sorry
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