A bushwalker has died after falling from a cliff in the Royal National Park south of Sydney.

Emergency services were called to a track between Bundeena and Marley Beach about 10:30am (AEST) after receiving reports a man had fallen approximately 10 metres.

Investigations into the fall are continuing but it is believed the man was with a group of walkers at the time of the incident.

Known as “Nasho”, the national park is heritage-listed and a regular destination for bushwalkers, cyclists, surfers and whale watchers, according to the NSW Office of Environment and Heritage.

Police expect it will take several hours to retrieve the man’s body.

A report will be prepared for the coroner.