Watch: 'What a day' - Inside the helicopter taking John and Max Key to golf with Barack Obama

Max Key is off to play golf with his dad, former prime minister John Key and former US President Barack Obama.

Max posted video on Instagram, with the caption "What a day" showing his contingent, which includes his mother, getting on a helicopter in Auckland's Mechanics Bay before flying off.

1 NEWS understands the group are headed to Northland where they'll play a round of golf at Kauri Cliffs with Mr Obama along with others.

The former US President was filmed at Mechanics Bay in Auckland this morning. Source: Breakfast