The thing that gets my blood boiling is the discarded trash scattered around everywhere. They removed 3 tons of trash a few years back in a big cleanup attempt. If you can't carry your trash back, you shouldn't be climbing up in the first place :/
I wonder if tourism shouldn't be considered a form of pollution, and if the countries that export the most tourists shouldn't also pay a tax similar to a carbon tax towards cleaning the damage they do to the local environment.