The solution is to mandate explicit maximum noise levels and pollution emissions and budget for random, mandatory testing with large financial penalties for non

The solution is to mandate explicit maximum noise levels and pollution emissions and budget for random, mandatory testing with large financial penalties for noncompliance. This, in turn, will greatly increase costs to the tour operators in order to comply. If it's still a viable business for tour operators when they have to internalize the costs, then the show goes on and tourists pay for the luxury. If not, the problem solves itself.