Photo of a large freshwater crocodile (Crocdylus Johnstoni) taken while slowly drifting through Cobbold Gorge in far north Queensland, Australia. These crocs are not considered overly dangerous, unlike the saltwater croc that will, if given half a chance, have you for dinner. You still need to be alert as they can give you quite a mauling.
As the freshwater croc lives on frogs, fish and shrimp you should not drag a finger through the water if in a small boat, as they are capable of performing a swift, painful amputation of the offending finger. Cheers