"board_type"=>"geology","description"=>"Salamanderweide (Uitzicht op de Betuwe)","information"=>"board"
"board_type"=>"history","information"=>"board"
"board_type"=>"nature","description"=>"informatiebord","information"=>"board"
"information"=>"office","source:date"=>"2017-10-24"
"hiking"=>"yes","information"=>"map","map_size"=>"site","map_type"=>"scheme"
"information"=>"board","name:en"=>"Fort aan de Buursteeg"
"description"=>"Etappe 5: Elst-Heelsum","hiking"=>"yes","information"=>"map","map_size"=>"region","operator"=>"ANWB"
"information"=>"office","source:date"=>"2014-03-24"
"information"=>"office","opening_hours"=>"Tu 14:00-20:00; We 14:00-19:00; Fr 14:00-20:00; Jul 21-Sep 1: Sa 10:00-13:00"