#water_travel__watertravel__seafaring  travel by water
  supertype:  #travel__travelling__traveling  the act of going from one place to another; "he enjoyed selling but he hated the travel"
  subtype:  #ocean_trip__oceantrip__voyage  an act of traveling by water
     subtype:  #cruise__sail  an ocean trip taken for pleasure
  subtype:  #sailing  riding in a sailboat
     subtype:  #luff  sailing close to the wind
     subtype:  #beat.sailing  the act of beating to windward; sailing as close as possible to the direction from which the wind is blowing
     subtype:  #tack  sailing a zigzag course
  subtype:  #boating__yachting  water travel for pleasure

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