*Vendor applications will close Friday, September 15th, 2023. The City of Celina is excited to bring you the 2023 Beware! of the Square festival on Saturday, October 28th, 2023 from 4:00 - 9:00 PM. It's no secret that Celina loves a good festival, and those who have attended Beware! of the Square know that it's one of the City's best. Drawing thousands of zombies, jedis, and princesses to the historic downtown Square each year, this event offers the perfect mix of spooky and sweet.