Wow. People have shredded this movie - from the actors, to the script, to the sharks.
The only truly valid point is the sharks. I suppose not that big enough of a budget to get some really great effects - but we still are able to get the visual point. And, really, it's a B movie people.
Other than the sharks, the rest was enjoyable. Plenty of good ol' roll your eyes moments, but then a few quality honest to goodness surprising happenings as well.
I thought the acting was fine, only once or twice was I tossed from being engrossed in the movie. I think mostly when the reality tv guy was there.
Of course the setting was beautiful.
Lots more I could say, but it would get into the land of spoilers....
Bottom line - if you love shark movies, are running out of them lol, this is your next top choice. It's all downhill from here.