by Florian » Thu Jun 29, 2017 6:50 am
You can get a self-issue permit from either the state park or forest service stations in Idyllwild. Both stations have self-service permits so even if you are there before they open you can get permit. Adventure pass is not required for the Deer Springs trailhead! Only for Humber Park if you're hiking Devil's Slide trail. Also note that for weekends and holidays there is a quota on number of permits for Devil's Slide trail. You have to get your permit the morning of your hike.
-Florian