So I just saw a post about getting tickets for PH. You can get tickets up to 8 weeks out from when you are visiting PH.
https://www.nps.gov/perl/learn/news...7CrSjOOch-dMAxtS32A4goEiQf9y-PPuZT7ip97Lu-HcY
https://www.nps.gov/perl/learn/news...7CrSjOOch-dMAxtS32A4goEiQf9y-PPuZT7ip97Lu-HcY