This is a spot where we were warned about saltwater crocodiles, and told about someone who was killed there. King Cascade Early in the season, you may get a misty drenching from King Cascades, a hanging garden type of falls that tumble down a terraced rock face on the Prince Regent River. However, there is definitely no swimming at the base of these falls due to the presence of saltwater crocodiles. The river itself is somewhat unusual as it runs in a dead straight line, carved through a fault line in the rock.