Work has begun on the Eton Manor Olympic venue in London, UK, the last of the permanent Olympic Park venues to begin construction.
Work is now underway on the permanent sporting facilities, while foundations are due to be completed within a few months.
Eton Manor's aquatics training venue will house three Olympic-size temporary swimming pools, a temporary synchronised swimming pool and a temporary water polo pool.
The venue will host the wheelchair tennis competition during the Paralympic Games.
The 10,500-seat arena will be transformed into sports and leisure facilities after the games, and will be managed by the Lee Valley Regional Park Authority.
The legacy facilities will include a hockey centre with two competition pitches, a tennis centre with four indoor and six outdoor courts, and five-a-side football pitches.
The facility will be ready for use by spring 2012.