Drinking Seawater Makes Me Stronger, and You Call This Desert Island Survival?

For everyone else, being stranded on a deserted island is a nightmare. For me, it's like coming home.

What? Not enough fresh water? I only drink seawater, and the more I drink, the stronger I get!

While everyone else is still struggling for a bite of bread, I'm already riding a shark, the one and only god of this ocean!