The river
The St. Marys is a blackwater river that runs tea-dark over white sand along the Georgia and Florida line. Public access on the upper river is thin, so a paddler can cover a long stretch without meeting another boat. It runs directly past 3 Brothers Landing.



Put a kayak in from the ramp before the sun is properly up and the water is like glass. Sandbars come and go with the level, and in low water there are enough of them to make a whole day of stopping and swimming.
Fishing is redbreast, bass and catfish, depending on the season and who you ask. The bank in front of the cabins fishes well enough that some guests never bother getting in a boat.
We have written this river up in full, with gauges, access points, hazards and trip plans, in our own free guide.
10 minutes to the eastern entrance. Georgia's first UNESCO World Heritage Site, inscribed in July 2026. Read our pocket guide.
One of the busiest rail corridors in the country, with a covered viewing platform in town.
Charlton County recreation area downstream on the same river.
St. Marys and Cumberland Island are about an hour east.
Yes. It is a slow blackwater river with sandbars and very light traffic on the upper stretch, which makes it well suited to easy flatwater paddling. Read the level before planning a long trip, because the upper river drops in summer droughts.
The St. Marys is a blackwater river. The colour comes from tannins leached out of cypress and peat in the Okefenokee, which drains into it. The water is stained rather than dirty, and it runs over pale sand.
Yes. 3 Brothers Landing has a fish cleaning station under the main cabin, a charcoal grill, a flat top griddle and a full kitchen with a stove and a full size refrigerator.
Redbreast sunfish, largemouth bass and catfish are the usual catch, with the season and the river level deciding what is biting.
Guests do, usually off the sandbars. It is a wild river with a current, submerged logs and shifting bottom, so children should be supervised and life jackets are on the hook by the ramp.
Yes. The Okefenokee Swamp drains into two rivers, the Suwannee to the west and the St. Marys to the east, which is why the water here runs the colour it does.