The 44th president of the United States of America landed in Auckland International Airport at 12.13am on Wednesday after spending two days in Singapore.
Before his arrival a police presence was noted at Air Centre One, a designated area for corporate private jets. An access road was being blocked by police.
Police on motorcycles and in mufti-uniform were also there.
A motorcade with Obama left the airport about 12.30am with police in front and behind.
Obama, understood to be flying in a Gulfstream jet, was expected to spend the night in Auckland before heading north this morning to play golf with former New Zealand Prime Minister Sir John Key.
Key would not reveal where they would play but they are set to visit more than one course - possibly Kauri Cliffs at Matauri Bay, owned by Julian Robertson, and the Carrington golf course on the Karikari Peninsula.
Obama is tipped to stay at The Landing luxury home in Northland tonight before returning to Auckland tomorrow for an official welcome at Government House.
There he will experience his first powhiri and hongi - it is understood officials have been asked to send detailed information about the process and meaning of the hongi for him.
He will hold a private meeting with Prime Minister Jacinda Ardern.
The only event open to media is the official powhiri at Government House.
Actor Sam Neill has now revealed on Twitter that he is the moderator for Obama's speaking event tomororw night.
Despite the secrecy surrounding the trip and lack of public opportunities, the Government is providing some support for the visit because of Obama's status.
About $50,000 is expected to be spent from a fund to host VIP visitors for things such as transport in the Crown limos, airport facilitation and some security.
Police are likely to be involved in security around the locations Obama will be at. A spokesman said they did not comment on individuals.
"New Zealand police has extensive experience of policing visits by a wide range of high-profile individuals, however we do not discuss specific security matters regarding those individuals."
Have you seen Obama? Or anything that would suggest the presence of a former United States president? If so, please email us at newsdesk@nzherald.co.nz