A long time ago my brother and some of his friends made a video of urban kayaking... it involved someone getting in a cardboard box, with ores, in a city fountain... unfortunately the video has since been lost. After seeing that video however, I've discovered that using a real kayak, in a slightly larger body of water, where you're not looking over your shoulder for the security guards just works better. This is Mom, Dad, Mark & I kayaking in Mom & Dad's pond.
Disclaimer: Children do not try urban kayaking without proper floation devices.