The Collaborative International Dictionary of English v.0.48:

Perambulation \Per*am`bu*la"tion\, n.
   1. The act of perambulating; traversing. --Bacon.
      [1913 Webster]

   2. An annual survey of boundaries, as of town, a parish, a
      forest, etc.
      [1913 Webster]

   3. A district within which one is authorized to make a tour
      of inspection. "The . . . bounds of his own
      perambulation." [Obs.] --Holyday.
      [1913 Webster]

WordNet (r) 3.0 (2006):

perambulation
    n 1: a walk around a territory (a parish or manor or forest
         etc.) in order to officially assert and record its
         boundaries
    2: a leisurely walk (usually in some public place) [syn:
       amble, promenade, saunter, stroll, perambulation]