roam about

roam about

To move or wander in an aimless, ambling, unrestricted manner around (some place or area). Mr. Jackson is always roaming about the school after everyone else has gone home. I only had a day in London, so I just spent the time roaming about, trying to get a sense of the city. There have been reports of a bear roaming about the neighborhood, so be careful.
See also: roam
Farlex Dictionary of Idioms.

roam about

 and roam around
to wander or range about freely. Stay where you are and don't roam about. I'm too tired to roam around very much.
See also: roam
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • roam
  • roam around
  • poodle around
  • pootle around
  • go walkabout
  • wander into (some place)
  • move around
  • move around and move about
  • sail around
  • wander in
References in classic literature
"I don't want to go to the cove--but I'll go over the channel with you, and roam about on the sand shore till you come back.
Annes House of Dreams