I just found out that I have a few days off this October (10-14) and I am wanting to do a backpacking trip in the Zion Narrows. However, when I looked on the Zion National Park website it said that there were no overnight permits left for those dates. So, my question is, is there any way to get a permit from the park office the day of, or day before you leave? Or are the permits only available online? Any other info you have would be awesome! Thanks!