The Bayard Elsbree Memorial Park, in Preston Hollow is one of the few (if any) with a drive-up pay phone at it's entrance. (If you use your I-phone to geo-cache you will want to print this out before going.) There is a great paved Bicycle/walking path so come take a walk and pick up a smiley. Park is used by many locals, so stealth may be needed. Opened from dawn to dusk.