Happy Grandparents' Day

Last year, Ben Marr set the Internet's pulse racing with his crazy video of himself and some friends kayaking down The Lion's Bay Slide, and hitting speeds of close to 60 kmh.
Now he's made the Internet's heart beat all-a-twitter with a video showing him running some rapids on the Ottawa River. With his grandmother. Did I mention she's 83 years old?
Check out the clip embedded below: