Ice Passage Introduction: Tyrolean artist Oliver Irschitz designed a unique Ice Passage. Visitors can only discover its secrets by walking in it. Following the footsteps, crystal crystals appear on the ground, and the weight-bearing crystals will lead visitors to the other side safely. A beam of light follows the footsteps and gradually enters the twinkling world. The more people who go on a treasure hunting adventure, the brighter the surroundings will become and the deeper the footprints in the ground will become.