This is a bit tourist-y, but ever since I was a kid I've wanted to do this. It's both a lot like snowboarding and nothing like snowboarding: your basic skills transfer over fine, but sand doesn't shift like powder does and it's not easy to get speed back if you waste it. You also do this in socks, not boots. Greatest bit was just sending it off a massive dune - pretty sure I have a video floating around somewhere.