A 16-year-old boy died yesterday after jumping off a bridge in Raglan, and a 22 year old man was killed on the Kaituna River, north of Rotorua - another was seriously injured. And two young men also nearly drowned at Muriwai, while a 14 year old girl is also in hospital following a near drowning at Maraetai in southeast Auckland. Auckland University Water safety expert, Dr Kevin Moran, says young men take more risks and over estimate their abilities.