Swiftly increasing numbers of visitors are descending on attractive places all over the world. All this traveling means we keep running into each other. Take U.S. parks, national forests, and other public lands, for instance. The hardest management problem is how to balance every citizen's right to visit a place against the need to keep tourist traffic from ruining the experience or even the site itself. Techniques vary for controlling overcrowding and the environmental wear and tear it causes.
None are perfect.
More of them every year. Issue visitor permits by lottery 2. Raise entry fees enough to cut down on traffic 4. Restrict visitors to certain routes 5.