It's really disturbing reading this.
For a few dollars more we are ready to go to any inhuman extreme. Foreign tourists take advantage of our greed by demanding more than they except or will allow in their own country.
I would propose the reserves have a restriction on number of visitors permitted every year. Further more make the entry free so high that most can't afford it. After all this heritage is priceless yet we are selling it for a few paltry dollars.