You are the spirit of summer (Y/N summer) I couldn't think of a better name.
You can control water, manipulating it. As you read you'll find out more.
And you swim very fast, usually you shoot streams of water through the air and swim in them, this makes you travel really fast as the current of the waves pulls you wherever you want to go.
You usually hang around beaches because that's where water is and a lot of opportunities to help children.... You'll find out later what you centre is
You can decide yourself what you want your outfit to be
But do imagine some sort of anklet thats gonna be the source of your power!
I was thinking something like this
Everything else you'll find more about during this story.