This is a tribute to Jaws. A Shark is one of those creatures that can defeat Beezus. Beezus just can’t take him on. Sharks are pretty big and tough, especcialy Great Whites. Beezus never stood a chance. Shark wins.
DReager1.com
The Ultimate Fighting/Review Site
DReager1.com 
WTF? Where are they fighting?
Well, it’s hard to say for certain here. It has to be a neutral area which is good for both fighters, but that’s tricky in this circumstance. Maybe a small island (About a block in size) surrounded by water? Something like that would work I suppose
Except then, it would still be impossible for the fight to be fair. One is going to be handicapped.
True, but this way she has a good amount of area to work with to buy some time before eventually getting eaten and the Shark has to deal with the land so he can’t just jump her.