i'm holding out for a hero 'til the end of the night.....

got this song stuck in my head....

anyway, research:

http://www.sachamber.org/visitor/riverwalk_history.php
http://www.sanantonioriverwalk.com/history.html
http://www.sanantonioinsider.com/map/san-antonio-large_map.htm
http://www.jman5.com/alamo/san-antonio-riverwalk-map.htm
http://www.riverwalkguide.com/pdfs/fin_dt_general_map.pdf

( lots of facts herein.... )