Yes, it can be frustrating for sure! We added this to the article so people know in advance about the lines/closure: “The best tip we can give anyone visiting Arches, especially during the busy season, is to ARRIVE EARLY, like before 8 am! When the parking lots at the main attractions fill up, the park will close for a short time. As people leave and more spots open, the park will resume allowing people in. We also find the late afternoon to be another good time to avoid the lines.”