The park provides a chance to study unique plants, animals and birds of the region. Many species of birds unique to the southern U.S. are found here. Enjoy camping, hiking, picnicking, bird watching, nature study, boating and fishing. Professional park naturalists conduct daily, on-site birdwatching and wildlife tours from December through March. A visitor birding information center is also available from December through March.
All tours begin at the group pavilion.
Tours last about 6 to 8 hours. Reservations and advance payment for these tours may be made by credit card or by mailing payment to the park address. Income from tours supports the conservation efforts of Bentsen-Rio Grande Valley State Park. Visitors may rent the bird observation blinds. Resacas are low-lying, former river channels, which are partially filled with silt.