Two men have been released without charge after being questioned following the discovery of a body in the Royal National Park near Otford.
The body of a 45-year-old man was discovered by police in the early hours of Tuesday morning on a walking track leading to Werrong Beach, also known as Hell Hole Beach.
The beach is a designated nudist area, and is listed as an unofficial gay hangout on a number of websites.
Police received a triple-0 call about a fight at the beach about 8.20pm on Monday.
They found the body about 12.15am on the nearby walking track.
Two Fairfield men were at Bankstown Police Station on Tuesday, assisting Wollongong detectives and the homicide squad with their investigations.
They were released without charge on Tuesday night.
Police investigations are continuing.
Anyone with information should call Crime Stoppers on 1800 333 000.