"access"=>"customers","seamark:harbour:category"=>"marina","seamark:name"=>"Haven Garnwerd aan Zee","seamark:type"=>"harbour"
"email"=>"[email protected]","seamark:harbour:category"=>"marina","seamark:name"=>"Jachthaven Aduarderzijl","seamark:type"=>"harbour"
"email"=>"[email protected]","operator"=>"Camping Reitdiep","seamark:harbour:category"=>"marina","seamark:type"=>"harbour"
"email"=>"[email protected]","power_supply"=>"yes","sanitary_dump_station"=>"yes","seamark:harbour:category"=>"marina","seamark:name"=>"Haven Marenland Winsum","seamark:type"=>"harbour"