To guarantee entry to Enchanted Rock during busy times like the week of spring break and most weekends in the spring and fall, it is important that you purchase a day pass before driving out to the park.
There will be five entry portals during the day at Enchanted Rock, with a limited number of guest vehicles admitted during each of those. (For example, the first entry portal is 6:30 to 8:30 a.m.) Your pass will determine when they should arrive at the park for entry. Day passes are available up to 30 days in advance at this website: https://texasstateparks.reserveamerica.com If you have not made a reservation with Texas Parks & Wildlife before, they will need to first create an account on the website before purchasing their pass.
Again, a key element is to purchase a pass online before driving out to Enchanted Rock — while you have good connectivity on their phone or laptop computer.
Please visit the state parks website if you have additional questions.