"seamark:name"=>"Jachthaven Valkenburg","seamark:type"=>"harbour","harbour_master"=>"O. Weideman","seamark:harbour:category"=>"marina"
"seamark:name"=>"Zeil- en Motorbootvereniging Jason","seamark:type"=>"harbour","harbour_master"=>"Ko Jager","seamark:harbour:category"=>"marina"
"seamark:name"=>"W.S.V. Loowaard Jachthaven","seamark:type"=>"harbour","seamark:harbour:category"=>"marina"