The classic water fun competition It's a Knockout took place as part of Coniston Water Festival in September 2005.
Teams made up of Coniston residents, artists and Lake District National Park workers battled it out on water with inflatables or on land with ropes and sponges.
Cup cakes became unlikely missiles as teams attempted to travel an obstacle course with a tea-tray intact.
The wet activities took place at Land's Point, Coniston Hall Farm.
Coniston's 10-day festival had begun when an American musician hit the high notes with a performance on a vintage Cumberland xylophone.
Artist and musician Brian Dewan played the Keswick museum piece at the lake side at dusk.
It was an early highlight in the revamped festival, which had returned after a seven-year absence.
Project manager Sarah McCrory said: "There was a good turnout for the music event when local band Dangerous Hatchet played at the Institute.
"We're all looking forward to the boat dressing parade and regatta."
The Coniston Water Festival was started in the 1850s and had run until 1998.
Up to 20 boats took part in the Coniston Water Regatta a few days later.
The five races marked the return of the event after a four-year absence.
Organisers hoped it would mark the re-birth of the regatta which in its heyday had attracted up to 100 boats.
Coniston Sailing Club Commodore John Johnson said: "When I was in my 20s you used to get 100 boats on the water which was quite a spectacle.
"My hope for the future is that it becomes an annual event again.
"We can build on this, its's a start. It is good to have it back."
He added: "Coniston Water is a superb place to come and sail."
The event had come back as part of that year's Coniston Water Festival.
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