This past weekend is usually the coldest of the year for water temperatures in Gorleston-on-Sea in Norfolk but that didn't stop 125 people having a dip.
They raised more than £10,000 for the Cystic Fibrosis Trust. It was organised by Alexandra and Kevin Sayers whose four year old son Enzo was diagnosed with the disease as a baby.
Click below to watch the report from ITV News Anglia's Megan Boot:
More top news
Brightening up after a dull start with most parts staying dry. Top temperatures of 25 deg C (77 deg F).
Hundreds of people have attended the funeral of a motor cyclist from West Norfolk, killed in a race in Hampshire earlier this month.
Five people have been arrested after a teenager was stabbed in Ipswich and left needing intensive care