"caravans"=>"yes","drinking_water"=>"yes","shower"=>"yes","tents"=>"yes","toilets"=>"yes"
"backcountry"=>"yes","camp_site"=>"basic","capacity"=>"2","capacity:persons"=>"4","capacity:tents"=>"2","caravans"=>"no","drinking_water"=>"no","fee"=>"no","maxstay"=>"1 day","maxtents"=>"2","operator"=>"Stichting Twickel","picnic_table"=>"yes","power_supply"=>"no","shower"=>"no","static_caravans"=>"no","tents"=>"yes","toilets"=>"no"