I took a day trip down to Penquin and Seal Islands about an hour south of Perth and about 500 meters off shore! It's all built up now with a cafe on the mainland side and a Discovery center and Rangers office on the island. None of that was there when as a teenager, Dave and I would sail the "surf-cat" over to the island and go exploring. We would swim with the seals and sting rays. What a great way to grow up! Still worth the visit. Enjoy.
Little Penguin (Formally "Fairy" penguins)