The word Clairvoyance is a combination of French words - "clair" which means clear and "voyance" which means "vision". Clairvoyants are people who has an extra sensory perception to gain information about the person, an object, or an event with clear vision coming in to their consciousness.
Their visions are either retrocognition, things of the past or precognition, thing that will happen in the future.
Information on where to find on is on the link below.
Link: South Australia, Clairvoyants; Adelaide,