London Olympic whitewater design

I was digging around tonight trying to find out how the rapids were being made at the London Olympic whitewater course.  I had been seeing those strange looking blocks on all the video's but figured the features were made like most parks I have seen.  Well, I was definitly wrong there.  Looks like the olympics are using a new product called Rapidblocks.  Maybe the Nantahala Outdoor Center should give these guys a call.

Check out the source for more info.