A hissing sea monster is said to reside near the mouth of the Altamaha River in southeastern Georgia. Called Altamaha-ha for the river, or “Altie” for short, the legend predates British-English colonization and is said to have originated with the Lower Muskogee Creek Tribe.

One of the largest rivers in Georgia, it empties into the Atlantic Ocean. It has one of the largest river basins in the country, second only to the Mississippi River. Extending about 137 miles, it joins three major tributaries—the Ocmulgee and Oconee Rivers near Lumberton City —and is joined further downriver by the Ohoopee River. It empties into Altamaha Sound above Brunswick, where the Darien, Butler, and Champney Rivers join it before it reaches the ocean.

The river area, located primarily in McIntosh and Glenn Counties along the Atlantic Coast, is not made up of beaches but of many islands, acres of marshes, dikes, canals, ponds, and old rice fields.

The Altamaha-ha is said to inhabit the myriad of small streams and twisting channels of the river and adjacent marshes, particularly around Darien, Butler Island, and elsewhere in McIntosh County.

This strange cryptid is described as having a sturgeon-like body, including a bony ridge on its top. With front flippers and no back limbs, it swims like a dolphin and has a crocodile-like snout, with large, protruding eyes and large, sharp teeth. Its coloring is said to be gray or green with a whitish-yellow underbelly. Reports indicate it is 20-30 feet long, though some have seen smaller or larger creatures, suggesting the Altamaha-ha is not alone.

It has reportedly been seen basking on the shore, trolling casually along the river, and even reacting defensively in the presence of boaters.

Though no physical evidence of the Altamaha-ha has been found, the tales date back centuries, with the Indians describing a giant snake-like creature that hissed and bellowed.

One of the first non-native reports of the creature came on April 18, 1830, when a correspondent for the Savannah Georgian reported multiple sightings of a sea monster off the Georgia coast. The primary eyewitness was Captain Delano of the schooner Eagle, who reported seeing a large creature off St. Simons Island below the mouth of the Altamaha River. He described it as about 70 feet long, with a circumference about the size of a barrel, and a head resembling an alligator. Five other men on the schooner also reported seeing the monster, as did several planters on St. Simons Island.

In the 1920s, timbermen riding the river reported sighting a large snake-like water monster, and in 1935, a group of hunters spotted what they called a “giant snake” swimming through the river. In the 1940s, Boy Scouts reported seeing the creature, and two officials from the Reidsville State Prison in the 1950s did too.

In 1969, two brothers fishing on the Altamaha River at Clark’s Bluff reported seeing an animal they first thought was a sturgeon but quickly changed their minds when they got a better look. They said it measured about 10-12 feet long, with an alligator-like snout and a horizontal tail. They also described the creature as having a triangular ridge along the top of its body, sharp, pointed teeth, and a gun-metal gray color.

In the summer of 1980, two men reportedly saw Altamaha-ha stranded on a mud bank near Cathead Creek. They reported that the animal was lying halfway in the water, thrashing and trying to free itself from the bank. They described it as dark-colored, with rough skin, and about 20 feet long. While watching, the creature freed itself, submerged, and disappeared.

Later that year, in December 1980, another man reported having seen what he thought was an Altamaha-ha in Smith Lake. His description said the animal was 15-20 feet long, snake-like, with two brown humps that protruded from the water and left behind a wake like that of a speedboat.

Another report from the 1980s, written by a crab fisherman, stated that the creature looked like “the world’s biggest eel.”

A more recent report, from 2002, came from a man pulling a boat up the river near Brunswick who reported seeing something over 20 feet long and six feet wide break the water. In 2010, an amateur photographer captured a video of something strange swimming in the channel off Fort King George Historic Site in Darien.

Sightings of the Altamaha-ha continue to this day.

©Kathy Alexander/Legends of America, updated October 2026.

Also See:

Ghosts, Legends, Myths, and Mysteries

Georgia – The Peach State

Georgia Photo Galleries

Monsters & Strange Creatures

Sources:

Explore Southern History
Frontiers of Zoology
GA Books
Wikipedia