Comments include: "They have now barricaded off the best part but you can still get some beautiful photos from the walk track", "took pre-wedding photos here … BUT need to be really careful" and "be cautious, it's not the safest place in the world".
Marine Rescue NSW said emergency services were called "after a group of people taking photos inside the fence … regathered and could not find the woman".
Nine reports the woman is a British tourist who left a party earlier on Sunday in Rose Bay.
Footage obtained by multiple television networks shows a group of people walking along a nearby road yesterday morning before scaling a fence at the popular and picturesque location.
One member of the group peers over the edge before they all vanish from sight.
In August last year, a local woman believed to be aged 27 died after falling 30 metres from a cliff at the reserve onto rocks below.
"She was treated at the scene by passers-by until paramedics arrived but died at the scene," police said at the time.
"Witnesses have told police the woman may have been taking photos when she fell."
Multiple rescue helicopters were brought in to help and her body was retrieved by PolAir.
The Daily Telegraph reports tourists and people fishing climbed the fences today despite the woman's death yesterday morning.
A report will be prepared for the coroner.
