Just read an article somewhere this past week describing how overcrowded Zion NP is. I don't like overcrowding.
Utah?s Zion National Park Is Overcrowded, Even in Winter 'Off-Season' - Condé Nast Traveler
Planners engage with public to solve overcrowding concerns at Zion National Park ? St George News
we were there in sept 2014 and the Asians thought they owned the trails. only the first few got away with that! it was so crowded on the trails, that I won't go back, good thing the views were out standing and the Asians all went some where else when the buses pulled out. unfortunately Bryce Canyon was the same