Vicky feels very excited because she is taking a scenic helicopter tour over a massive national park in Australia today. She looks out the glass window with her camera ready to capture the changing landscape below. First, the pilot flies high above a massive, sharp mountain covered in permanent white snow at the peak. Next, the helicopter moves over a low, rolling green hill where a small group of wild kangaroos is jumping. Vicky looks down between the massive rock structures and spots a long, flat valley covered in beautiful yellow flowers. A fast, winding river crosses the center of this green area and flows directly into a giant, quiet blue lake. Finally, the pilot flies toward the coast, where the fresh water meets the vast salty ocean, revealing a small tropical island covered in palm trees near the beach.