Police are investigating the deaths of two men found in suburban parks in Melbourne and Sydney. In Melbourne, a 28-year-old man was discovered with apparent stab wounds in Balmoral Park around 4:20am on Saturday; homicide detectives are investigating, and several knives have been found in the area. In Sydney, a man in his 30s was found unconscious in a park on Rawson Street, Auburn, around 6:50am on Saturday, but could not be revived despite CPR attempts. Both incidents have led to the establishment of crime scenes and appeals for public information. Additionally, a woman's body was found in central Geelong, though her death is not being treated as suspicious.