Crocodiles at Windjana Gorge National Park Kakadu National Park is an enormous, biodiverse nature reserve in AustraliaâÂs Northern Territory Traveller exploring Champagne Springs at El Questro. Cockburn Range Traveller swimming at Amalia Gorge, El Questro. Aerial view of Lake Argyle, East Kimberley Tunnel Creek, Tunnel Creek National Park. Windjana Gorge, Windjana Gorge National Park.