Can you have camp fires

Yes but in some campsites u have to bring your own above the ground fire ring

Yes, they put in lots of rings around the campsites too.

There are fire pits provided at the deluxe sites. I'm not sure about the normal ones.

Also, if you get a deluxe site then it comes with a small fire ring just for your campsite.

Per their website Campfires Due to a city ordinance, campfires within the park are limited. Campfire rings are located between the rec hall and bathrooms, and next to the pool deck. All campers are welcome to use them and we ask that you please share with others. Small fireplaces 12 inches off the ground may be used at your campsite if you choose to bring your own.