The two 10 km open-water marathons in Hyde Park's Serpentine lake.
29th july 2012 olympics 1:30
One Gold medal for the 4×100 m freestyle swimming event
London
swimming
489 before the 2012 Olympics
swimming racing running wrestling
Michael Phelps.
48 mens
Missy Franklin.
tig
Athletics, weightlifting, swimming, & boxing.
The final event of the 2012 Olympics will be the Modern Pentathlon.