Mike Patterson: Liu He Ba fa

Here's Mike Patterson again, this time performing a more obscure internal art known as LiuHeBaFa. The name translates to "Six Harmonies, Eight Methods" and is also known as "Water Boxing".
While I have not yet found anyone that practices this art, I see it is remarkably similar to Tai Chi Chuan.
Here, Patterson does a good job at first demonstrating the soft, flowing movements of the art, then showing how powerful the applications can be.
More information on the history and development of LiuHeBaFa, "Water Boxing" can be found on this Wikipedia page.