MNN - Mother Nature Network

Denise Johns of Great Britain dives into the sand to save a ball during a practice session prior to the Visa FIVB Beach Volleyball International at Horse Guards Parade on Aug. 8 in London. Horse Guards Parade, equipped with a temporary arena filled with sand, will be the site of the beach volleyball competition during the 2012 Olympic Games. (Photo: Clive Rose/Getty Images)

Nick Rogers and Chris Grube of Great Britain speed through the choppy water of Weymouth Bay during a 470 Mens Class race on day eight of the Weymouth and Portland International Regatta on Aug. 9 at the Weymouth and Portland National Sailing Academy in Dorset, England. The Weymouth and Portland National Sailing Academy is at the site of some of the most optimal sailing waters in the country, making it a clear choice for the Olympic sailing competitions. (Photo: Clive Mason/Getty Images)