Words cannot describe its beauty. 

A great place for sollitude, this is one of the less visited national parks due to its isolated location.  Great place to go to get away -- but come prepared!  It's a 3 hour drive to Del Rio, and then another 3 hours from there to San Antonio.  Even flying from within the US it will take a day to get here.  And stock up on food and water no later than Del Rio (check out Wal Mart in Uvalde if possible) - this is the isolated desert.  There are no strip malls.  There is barely potable water in the towns on the park's west.

Check out: http://en.wikipedia.org/wiki/Big_Bend and http://en.wikipedia.org/wiki/Big_Bend_National_Park