But there was no sign of movement this afternoon. Police officers left the site soon after midday. Roads remain closed to the domain.
Auckland Council director regulatory services Craig Hobbs said this afternoon that council officers had agreed to give the protestors more time to "consider their position in the hope that an agreement can be made".
He said officers hoped the situation could be resolved amicably.
"However, we will not hesitate to take further action should it be required."
Protesters appear to be digging in this afternoon. Several groups arrived with groceries, bedding and other supplies in trolleys.
The campsite has about 10 tents and five cars. Protesters are flying flags, including an upside-down New Zealand flag, a Scottish flag and a Tino Rangatiratanga flag.
The protester who declined to be named told the Herald they were inspired by the occupation on Parliament grounds. A sign outside the domain campsite said "We stand with Wellington".
Earlier, Auckland Council said there were concerns over damage to public property and "disrespect" shown to a culturally significant pā site.
"While the council respects Aucklanders' rights to peaceful protest, parking on the grass and camping at the Domain is prohibited," Hobbs said.
"We also had serious concerns regarding damage to public property and the disrespect shown towards a culturally significant pā site.
"We have been in dialogue with those on-site over recent days and had expressed our concerns, prior to today's enforcement action being taken."
Police have blocked vehicle access to the Domain this week, which has affected Auckland City Hospital staff and visitors who often park at the reserve for free.
Police said officers were there this morning "to ensure that there have been no breaches of the peace".
Mayor Phil Goff said yesterday the council had trespass notices and its compliance team "at the ready" if police wished to enforce action on the group.
Goff said the group is breaching a bylaw that prevents people from camping on the public reserve.
"If we suspend the bylaw for one group, why would any other group believe they should follow what the bylaws require?
"This is not an area designed for people to camp in. It wouldn't be tolerated by anybody else and it shouldn't be tolerated from this group," he said yesterday.
On Saturday a protester in a video claimed to have mana whenua status, and said they were occupying a pa site.
But Ngāti Whātua Ōrākei - tangata whenua of central Auckland - said they do not support protest actions against vaccination and mandates.
"These actions are in direct opposition to the pathway we have chosen as leaders of our people, and the way forward that we have encouraged our Ngāti Whātua Ōrākei people to follow," it said.