UFOs. Ghosts. Chupacabras. Visitations. Is it actually possible that these things do exist? And if they do not, why have there been so many sightings and close experiences? National Paranormal Day is all about trying to answer these and other questions that circle around the idea of the paranormal. Each year on May 3rd National Paranormal Day people who believe in paranormal activities are encouraged to get together and share their experiences with each other.