50
"bicycle"=>"yes","bridge"=>"boardwalk","foot"=>"yes","layer"=>"1","network"=>"Mer Bleue","piste:difficulty"=>"easy","piste:grooming"=>"classic;skating","piste:type"=>"nordic","segregated"=>"no","ski"=>"designated","surface"=>"wood","width"=>"2.5","winter_service"=>"no"