Note that any ghost can step in salt and choose not to move afterwards, generating no footprints; players should listen for multiple footstep sounds before checking for footprints. As Wraiths leave no footprints and no fingerprints, they are notoriously difficult to get maximum photo rewards with.

Can Wraiths leave footprints in salt?

Wraiths will step in salt piles like any other ghost and leave an imprint, but will not leave UV-visible footprints. When they step in a salt pile, the Wraith will become "angered" and the level of ghost activity will increase for a short period of time.

Can Wraith make footprints?

A wraith can produce foot prints in salt, but you can't get the green foot steps under UV-light from it after he stepped into the salt.