It's not every day you get to swim with Olympians but then Saturday April 5 will be no ordinary day!

It will also be the grand opening of the Everyone Active Acton Centre in Ealing borough, which has cost £19million to build, and to mark the occasion a host of Team GB stars will be attending. They will include Team GB swimmers Fran Leighton, Adam Scholefield, Katie Dawkins and Vicki Lucas - plus six-time world champion swimmer Mark Foster, who will demonstrate his skills and sign autographs. Olympic swimmer and sports presenter Steve Parry will host the event.

getwestlondon has teamed up with Everyone Active to offer 20 youngsters a chance to swim with Olympians and take part in the Total Swimming Oceans of Fun afternoon at the Everyone Active Acton Centre on April 5.

The lucky winners will be coached in a variety of skills including water polo, fast swimming and synchronised swimming. Entrants must be aged 8–14 and be able to swim 50 metres unassisted - and parents/guardians can enter on behalf of children.

To be in with a chance of winning this fantastic prize, simply answer the following question:

Where will the Olympics be held in 2016?

A) Brazil

B) Japan

C) London

no later than midday on Monday March 17 and include your name, address and a daytime phone number in case you win. If you are 14 or under please obtain a parent or guardian's permission. Usual Trinity Mirror terms and conditions apply.