Sell-out crowds of 1,500 people are expected for each of the 54 matches over six days of competition.
The event acts as a dress-rehearsal for next year's
- when around 15,000 spectators will attend daily.
Twenty-four teams will compete on the temporary courts which have been created with
2,274 tonnes of sand
from a quarry in Godstone, Surrey.
Current world number one pairing Jennifer Kessy and April Ross of the United States will be the headline act on Tuesday, but
Beijing bronze medallists
Chen Xue and Xi Zhang of China are also competing.
The pairings of Denise Johns and Lucy Boulton and Shauna Mullin and Zara Dampney are battling it out for the one automatic place available for Britain in 2012
Although volleyball is a low-profile sport in this country, the British girls are keen to demonstrate the progress they are making ahead of the
"Countries like America and China have a great history in the sport and good development programmes, so to compete against that can be quite tough," said Dampney.
Her partner Mullin added: "We've gained a lot of experience in recent years out on the
and are currently ranked in the top 25 [40 places higher than two years ago], which shows our progression."
A second could potentially be attained through the world rankings when the
Olympic qualifying campaign
ends in June next year, however realistically the two teams know just one of them are likely to make it to London.
TEST EVENT FACTS:
• Horse Guards Parade lies at the heart of Whitehall, the political centre of the UK
• It is close to Downing Street and across St James's Park from Buckingham Palace
"The venue is absolutely unbelievable and this stadium only holds 1,500 people so to think what it's going to be like with 15,000 is going to be amazing," added Dampney.
"It's exciting to see what it's like and makes us just want to be here next year that much more."
Horse Guards Parade
is seen as one of the showcase 2012 venues, bringing together some of London's most famous landmarks with one of the most highly anticipated sports of the Olympics.
London Prepares Series
event, 9-14 August, will allow the London 2012 Organising Committee (
) to test key aspects of its operations in preparation for next year's Games.
This includes testing the field of play, timing, scoring technology, venue installation and effectiveness of the workforce.
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