The 42nd World Tin Bath Championships take place on Saturday in Castletown’s middle harbour.
More than 80 competitors from around the world have already entered the event, organised by the Castletown Ale Drinkers Society.
In addition to the men’s, women’s and veterans’ tin bath races, there are the usual snake races, which involve teams paddling large rubber inner tubes backwards down the harbour.
And in the afternoon, intrepid birdmen and women will make attempts at man-powered flight, alongside which will be new stunts by the CADS.
CADS member Dave Collister encouraged people to go along to the event, saying: ‘Come along to the World Tin Bath Championships at the tin bath racing capital of the world, Castletown, and enjoy two hours of slapstick stunts and family entertainment.’
Roads close at 1.30pm with racing getting underway at 2.30pm.
All proceeds from the day go to a local charity.