Home / Sponsored Stories"Clustering" to boost NZ tourism9 May, 2017 04:00 AMPhoto / Supplied. OtherSubscribe to listenAccess to Herald Premium articles require a Premium subscription. Subscribe now to listen.Subscribe nowAlready a subscriber? Sign in hereListening to articles is free for open-access content—explore other articles or learn more about text-to-speech.SaveShareShare this articleCopy LinkEmailFacebookTwitter/XLinkedInReddit