Swimmers will again attempt the Boulter's to Bray Swim on Saturday, July 5.
Organiser Keith Dixon says 110 people have signed up for the 2.8km swim from Boulter's Lock to the Waterside Inn in Bray.
The swim was first held in the 1890s, and was a regular fixture in Maidenhead's sporting calendar until 1969.
Friends Keith Dixon, Tom Jost and Rob Davies revived the race in 2012 after a trophy was discovered in Bourne End Auction Rooms.
He hopes to get up 140 competitors this year.
Among those taking part are Mike Hughes and Rita Ward, who both swam the race in the 1960s.
Entry is open to strong swimmers.
Keith, from College Avenue, said: "We say they have got to be able to swim 80 lengths of a pool."
Visit here to enter. It costs £33.
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