She comes from a society not unlike ancient Greece- her kind has always just kept itself in the water, having more than enough space to thrive... But she wants to see what her brethren aren’t interested in, namely, the land.
Curious to see whatever she can, her way of carrying herself might seem strange (aside from being yaknow 19 feet tall) but land dwellers' ways are pretty weird for her too.
She's pretty much a tourist, which sometimes gets her into a spot of trouble!