Start early for Kakadu National Park, a vast 20,000 sq km landscape known for biodiversity, wetlands and deep cultural significance. Stretch your legs on a short walk at Mamukala Wetlands, then stop for a picnic lunch near Cahill's Crossing, a well-known crocodile viewing area. Later, board the Guluyambi Cultural Cruise on the East Alligator River. Despite the name, this is crocodile country, not alligator country. An Aboriginal guide will share insight into the river, the animals, the plants and the cultural meaning of the land. After the cruise, walk with your leader through the Ubirr rock art site and continue to a lookout with wide views across Kakadu.