Complex sentence: The Penguin Parade at Phillip Island Nature Park, in which Little Penguins come ashore in groups, attracts visitors from all over the world, who come to see one of the few areas where this species of penguin can be seen.
Split into simpler sentences: The Penguin Parade at Phillip Island Nature Park, in which Little Penguins come ashore in groups, attracts visitors from all over the world. They come to see one of the few areas where this species of penguin can be seen.