I have to disagree Raging Bull, I'm glad he was banned because I just had to read through two pages of crap before I could find someone talking about the game. It was rediculous.
As far as the swimming thing goes, I'll be happy if you can only swim for a couple minutes. There were so many times when I accidentally jumped off a dock or what-have-you and the AI didn't jump me back on so that I drowned, inches from the dock. I don't know if I'll really be into swimming around, looking for underwater hidden packages. The whole idea reminds me of the original Ninja Turtles game for Nintendo when you have to swim around and disable all the bombs on the dam. Anyone remember that?