NSW Health has clarified that visits to grave sites during lockdown will be allowed to continue after confusion.

Mourners in Greater Sydney grieving the loss of loved ones have been assured they can leave home during lockdown for compassionate reasons to mark a death anniversary or pay their respects at a grave-site. 

An online petition about accessibility at the Rookwood Cemetery has gained about 10,000 signatures and the site posted about changes to its services on Wednesday. 

NSW Health has confirmed that under the current orders, cemeteries are not required to close. 

In a statement, it said a visit to a grave-site for an anniversary is permitted on compassionate grounds and members of the same household are allowed to gather outdoors.

"Attending a funeral or memorial service is a reasonable excuse to leave home," a NSW Health spokesperson said. 

Ten people can attend a service in Greater Sydney under the current health orders for NSW.