Blue Mountains walking tracks to close: National Parks and Wildlife Service

The development follows the tragic rockslide that killed two people at Wentworth Falls on Monday and due to the forecast of significant rain for later in the week.

A spokesperson for the NSW National Parks and Wildlife Service (NPWS) said tracks in the Wentworth Falls precinct of the national park were already closed until further notice.

"The site (at Wentworth Falls) is currently closed and a comprehensive review will be undertaken," said the spokesperson.

The spokesperson did not say how long the walking track closures would remain in place.

Earlier the Blue Mountains City Council was working with the NPWS in assessing walking tracks in the area.

This co-ordinated approach was to determine priorities for track closures in the national park, as well as council-run walking tracks. Walking tracks were assessed based on risk.

Blue Mountains Mayor Mark Greenhill said he asked council to close any tracks that were in at risk areas.

"Our hearts go out to those affected in this week's landslip, and their families and friends. It is an absolute tragedy."

The walking track where two members of a visiting British family were killed on Monday was inspected by NPWS just days before the tragedy.

A NPWS spokesperson said the inspection was done as part of a "routine track assessment program".

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The five family members were walking along the Wentworth Pass track at Wentworth Falls at about 1.40pm on Monday when rocks dislodged from the wall above them.

The landslip killed the father, 49, and a son, nine, at the scene. The mother, 50, and another son, 14, were critically injured and winched from the location just before 6pm on Monday and taken to Westmead Hospital.

The family's 15-year-old daughter, in an extremely distressed state, was eventually led out on foot by emergency personnel and treated by ambulance paramedics for shock before being transferred to Westmead Children's Hospital.