Sydney’s first “natural” burial park, with headstones replaced with GPS locators in coffins, will be opening this month.

Instead of looking for a traditional tombstone to mark the final resting place of a loved one, friends and relatives will be able to find the location of the deceased using a GPS device or mobile phone.

Keeping with the natural theme, coffins and clothes will be biodegradable, meaning that more graves can be fitted in the small area – an increasing concern in urban areas.

The Catholic Church, which will be managing the site, believes that Kemps Creek Memorial Park will help fulfill an increasing demand for environmentally friendly burials and also help fight the city's lack of cemetery space.

"The park will look very natural, just grass and trees. There will be no headstones and instead people will be buried in the park and a GPS locator placed in the coffin,” Michael McMahon chief executive of the Catholic Cemeteries Board told ABC News.

Almost eight per cent of burials in the UK are now "natural", according to the Board.