Santa Elena Canyon offers some of the most challenging, and most rewarding kayaking waters in all of Texas. The narrow, high canyon is exceptionally beautiful, and one of the most alluring draws to this area. Be aware that there are very few places to take out along this course, so once you start you'll need to follow all the way through. Also be aware the Rio Grande River is the border between the United States and Mexico, so identification and documentation are issues to consider.