The Lee Valley White Water Centre will be the first Olympic venue to open its doors to the public after the London 2012 Games.
Tickets have already gone on sale for the white water rafting venue when it opens on September 8.
The opening will be two days before the end of the London 2012 Paralympic Games.
The Lee Valley Centre is the venue for the Olympic five-day canoe slalom competition in July.
Shaun Dawson, chief executive of Lee Valley Regional Park Authority, which runs the centre said: “Everyone here has got their fingers crossed for Team GB to bring home the medals during the Games.
“We’re thrilled that we’ll be the first London 2012 venue to open, and that we’ll be able to do that while the Paralympic Games are still on.
“We were the only brand new London 2012 venue to open ahead of Games in April 2011 and have seen huge demand for Lee Valley White Water Centre. We’ve already had a wonderful first year with more than 155,000 visitors, 33,000 of whom have rafted and 7,000 have canoed or kayaked.
“We’ve delivered a real legacy before the Games have even started. We know there were many people disappointed they couldn’t take part before the Games and we’re delighted we can welcome people from September.”
The centre has already become a tourist attraction, used by paddlers of all abilities, from grassroots to elite.
From 2013, Lee Valley Regional Park Authority will also launch programmes aimed at schools and community groups to give them a taste of paddle sports as part of ongoing work to deliver an enduring legacy from the London 2012 Games.