Mustang Island State Park is 3954 acres with about 5 miles of beach on the Gulf of Mexico. Activities include camping, picnicking, fishing, swimming, hiking, mountain biking, sunbathing, surfing, kayaking and excellent birding, especially during spring and fall migrations. Mustang Island is a coastal barrier island with a unique and complicated ecosystem, dependent upon sand dunes.

The island was first named "Wild Horse Island," then "Mustang," because of the wild horses, called "Mestenos," brought to the island by the Spaniards in the 1800s.

Admission $4 per day, per person 13 and older.