For private groups looking for more flexibility or who may be outside of the Rehoboth, Lewes, Milton, Dewey area, the Party Bus / Brew Bus option may be the way to go.  

You choose your duration (min. 5 hours on Saturdays) and the venues you would like to visit.  See the Build Your Own Brew Tour menu item for a list of venues you can choose.

  https://www.delmarvadiscoverytours.com/brew-bus-shuttle/shuttle.html .