Very enjoyable
A great game with some amusing little aspects. I particularly liked the fact that you could drag down absurdly enormous objects like jets, and the realism of having to swim from deeper down in the water in order to jump further into the air.
One very small gripe: It would have been great it there were different game options, such as a time attack or freeplay mode which wasn't restricted to a certain number of miles. Only because I enjoyed the game and would have liked the option to play for longer without having my run forcibly ended and having to start from the beginning ;P
Overall, an excellent and very enjoyable game. Great work.