Water Horse.

I'm a water horse,
I grow and shrink,
Watch me froth,
I'll rise and sink.

I'm a water horse,
I occur in the sea,
It's a habitat,
Yet from it I do flee.

I'm a water horse,
I dance in the sand,
I'm beautiful and unique,
Powerful and grand.

I'm a water horse,
My life is rather short,
I'm in every country,
Yet no one pays me thought.