He's already spent an estimated $100 million creating one of the world's best golf courses in New Zealand. Now American billionaire Ric Kayne plans to spend a further $50m-plus developing two new public courses north of Auckland.

Kayne, working with Queenstown-based landscape architect John Darby of Darby Partners and world-class golf course designer Tom Doak, developed the private links-style, invitation-only Tara Iti course near Mangawhai, 80 minutes north of Auckland. It's the course where ex-President Barack Obama played last March with former-Prime Minister John Key.

Now Kayne plans to build two new beachfront links-style courses on land adjacent

Kayne's plans