On the remote south coast of Tahiti, French Polynesia, its Jurassic peaks and azure lagoon accessible only by boat, Patrick Rochette is explaining how centuries-old Polynesian conservation traditions are being revived to protect this unique environment.

Mingled with gruesome tales of the island's history of tribal wars and the roots of wave-riding, it's a compelling account that resonates with the school children that the Tahitian elder has brought to this idyllic spot close to the Olympic surfing venue of Teahupo'o.