Depending on how busy the park is on the day of your arrival I would suggest getting a reservation. If the park is too busy and if you don't have a reservation the park will close to visitors unless you have a reservation.
Anyone over 13yrs of age $ 7 12 yrs and younger free.
7 dollars per adult kids under 11 yrs get in for free
6 dollars per person. Unless you have a Texas state park pass.
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