Unforgettable 1 Hour River Cruises. View Australia's deadliest reptiles, the famed Australian Salt Water Crocodile. Crocodiles are often viewed in cages or enclosures, however the chance to view the majestic jumping Crocodiles 100% in the wild and in their own habitats is one not to be missed. Adelaide River Queen Cruises' interaction with hundreds of different crocodiles is both educational and exciting, whilst being brief enough, to ensure there is minimal impact on the surrounding ecosystem.