1, Altamaha-ha. Discovered by the local Tama Native American tribe in Georgia, United States, long before its colonization by Britain, the Altamaha-ha lurks in the waters in and around the Altamaha River. Lurking in streams and rice fields, it’s often referred to as Altie for short, but the Altamaha-ha is most often spotted near the mouth of the river, particularly in the city of Darien and other parts of Georgia’s McIntosh County. The creatures has been described as having the body of a gigantic sturgeon, with a long bony crest that runs all the way along its spine and its massive tail. Altamaha-ha’s body is grayish in color, and it moves along using two large fins as front limbs, and a long tail with a flipper at its end. The scariest feature of this cryptid is the snout, which resembles that of a crocodile, complete with sharp teeth.