If you're fortunate enough to have some beachfront property, you should go out of your way to make it a unique and badass stretch of sand. You could do that with some lame old tiki torches or something, but I think you'll need something a little different. Something like a bunch of these lighted rocks, which are sure to make your waterfront look like the shores of some alien planet.
Crafted from weather-tested polyethelene, the lighted Oluce stones will cast a soft glow across your sand, allowing guests at your beach bbq to wander among them and soak up the light. And sure, at $316 a pop they're a lot more expensive than tiki torches, but what are you, a hobo?