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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Norwich City Manager Alex Neil admits that his team's hopes of sealing automatic promotion to the Premier League are probably over.
The number of people able to vote in the Anglia region has dropped by more than 70,000 after changes in the voter registration process.
Cool winds are expected throughout the weekend. Saturday will be sunny but Sunday will be cloudy.