Outdoorsman Kennedy Warne looks at Seaweek, a country-wide programme held annually in New Zealand which involves beach clean-ups, community snorkelling days, film screenings, lecturers and - in Waiheke - something called a conscious swim.
It comes as the UN agreed on language for a new treaty to facilitate international protection of the high seas. But, Kennedy says it is is not just the undersea world that brings that quieting of the mind.
So too the underworld on land.
He has just spent time walking and boating through the limestone caves at Waitomo courtesy of a tourism venture aptly named Spellbound.
