Not many people have fun at Guantanamo Bay, but Miss Universe did. Caracas-born beauty Dayana Mendoza visited the US naval base surrounded by barbed wire and watchtowers yesterday, and had a "relaxing, calm" time, she said. It was a "loooot of fun!" she wrote in her blog. "We visited the detainees' camps and we saw the jails, where they shower. It was very interesting. I didn't want to leave." Her visit was sponsored by the USO.