"email"=>"[email protected]","operator"=>"Camping Reitdiep","seamark:harbour:category"=>"marina","seamark:type"=>"harbour"
"email"=>"[email protected]","seamark:name"=>"Jachthaven Aduarderzijl","seamark:type"=>"harbour","seamark:harbour:category"=>"marina"
"email"=>"[email protected]","seamark:name"=>"Haven Marenland Winsum","seamark:type"=>"harbour","seamark:harbour:category"=>"marina"