I found the answer. A bookmark is NOT a named destination.
To view the named destinations:
http://help.adobe.com/en_US/acrobat/X/pro/using/WS58a04a822e3e50102bd615109794195ff-7cab.w.html
Basically, you need to do this:
Choose View > Show/Hide > Navigation Panes > Destinations. All destinations are automatically scanned.
To add a named destination:
http://help.adobe.com/en_US/acrobat/X/pro/using/WS58a04a822e3e50102bd615109794195ff-7ca7.w.html
Basically, do this:
Navigate to the location where you want to create a destination, and set the desired view. In the Destinations panel, choose New Destination from the options menu , and name the destination. Save the target document.