HUNDREDS of balloons filled the sky as they started a journey which children hope will take them to far flung corners of the world.
About 400 were released at Wood End Junior School, Greenford. Each youngster had paid £1 per balloon to take part in the race on Thursday, with the proceeds going towards new school benches.
The pupil whose balloon is found furthest away wins £25.
The event was organised by parents Sam Campion and Julie Evans.
Wood End Junior School headteacher Anne Hayes, said: "It was a great project that brought the school community together for an exciting event on the last week of term.
"We're very fortunate to have supportive parents with the time and energy to arrange such things for our children."
Anyone finding a purple helium balloon is asked to log on to www.woodend-jun.ealing.sch.uk and follow the links to enter the postcode where they found it and the attached identification