Nearly two thousand people took part in the Great East swim - among them two Olympic swimmers who are hoping to go for gold in the open water events at London 2012.
Russell Hookey spent the day at Alton Water near Ipswich and saw the action:
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loud will increase through the afternoon with scattered showers developing.
A cloudy end to the day but mostly dry.
A man who stabbed his friend to death in a drunken argument at the victim's home in Rushden has been found guilty of murder.