21/01/2010 10:19
Does the appearance of walkways and lights have a negative effect on the cave environment?

The walkways without doubt cause a change, but only from a visual point of view since their limited size and the materials used to build them do not in any way alter the hydrology, meteorology, chemistry and micro-climate of the cave. The lights are also an external feature, but since they remain on for less than an hour a day on average, they don't cause any significant changes.