In the run-up to the London 2012 Summer Olympic Games and London 2012 Summer Paralympic Games, Eton's purpose-built Dorney Lake, a permanent, eight-lane, 2,200 metre course (about 1.4 miles) in a 400-acre park, officially known throughout the Games as Eton Dorney, provided training facilities for Olympic and Paralympic competitors, and during the Games, hosted the Olympic and Paralympic Rowing competitions as well as the Olympic Canoe Sprint event, attracting over 400,000 visitors during the Games period (around 30,000 per day), and voted the best 2012 Olympic venue by spectators. Access to the 400-acre parkland around the Lake is provided to members of the public, free of charge, almost all the year round.

What purpose did Eton Dorney have to the London Olympic games?