Chrome - This is a chrome experiment and hence works best with Google Chrome. The Chrome browser is free, so download it here.
Firefox - Works, but is slower than Chrome.
Opera - Works.
Internet Explorer - Not supported.
Notes
If this demo is running slowly try a smaller canvas size.
A nice shallow water effect can be created by setting the damping and refraction to zero and the shading to four. Then make a couple waves and let it run.
This project was largely inspired by this article on 2D water effects.