What causes damage or disrupts many recognized tourist destinations?

• Exorbitant entrance fees are detrimental.
  The damage is caused by the cumulative effect of the large numbers of visitors.
• Cumulative effects of too many visitors.
  The damage is caused by the cumulative effect of the large numbers of visitors.
• Misbehaved visitors damage tourist destinations.
  The damage is caused by the cumulative effect of the large numbers of visitors.