Melbourne's Yarra river Australia's deadliest per kilometre for drowning deaths

Men in late 20s and early 30s with alcohol or drugs in their system the most frequent victims of fatal river drowning

Risk-taking young men who drown trying to swim Melbourne's Yarra river are making it the deadliest inland river per metre in Australia.

New data shows alcohol, drugs, tourists and young men who dare each other to swim the river are contributing to regular drownings.