A committed group of flat-Earthers — people who believe that the Earth is actually flat, and not spherical — are planning a visit to Antarctica, which they believe is the very end of the world.

What are the details?

According to Forbes, a group of the conspiracy theorists is organizing a cruise to Antarctica.

Flat Earth International Conference founder Robbie Davidson is reportedly spearheading the trip, according to Forbes contributor Jim Dobson. The group will also congregate and discuss their theories while on the trip.

Davidson believes that the edge of the Earth is somewhere in Antarctica, and believes he's got — or will have — proof.

"When we look at Antarctica, if you take a globe and you squish it down, the Antarctic would go all the way around the Earth," he explained. "It's kind of like an ice shore and it's very, very large. It's not like you just go there, and you can just peek over it. We don't believe anything can fall off the edge, because a big portion of the flat earth community believes that we're in a dome, like a snow globe.

"So," he continued, "the sun, moon, and stars are all inside. It's very high but all contained inside. So there's no way to actually fall off of the earth."

The Flat Earth International Conference insists that the Earth is a disk or a dome.

Filmmaker Jay Decasby — also a flat-Earther — said that if the group is able to make a cruise to Antarctica, they will be able to prove that the Earth is actually flat.

"All we have to do to shut this debate down once and for all is get the distance of the coast of Antarctica," Decasby insisted. "It had been done by early sailors (before the UN was established and set up its Antarctic Treaty which essentially made it illegal for independent and private exploration of Antarctica) who managed to make 60k+ miles, which irrefutably proves the flat earth model, but like all the other mountains of evidence for flat earth this is not enough for ballers today."

Decasby explained that if the group is able to stake out an expedition and sail all around the coast, the group will be able to "prove" that the perimeter of the continent is actually "the outer edges of flat earth," effectively refuting "every single argument anyone can possibly try to pitch for the sun-worshipping cult of heliocentrism."

Decasby added, "They've made laws to not allow any kind of motorized equipment on the ice, which would help us prove not only flat Earth, but what's beyond the ice wall, but in reality, we don't even need to get onto the ice to prove flat earth."

"The coast of Antarctica on the ball earth is no more than 14.5K miles," he explained. "On a flat earth, it would be over 60K. ... We have evidence of 60K+ and none of 14.5."

Davidson told the Daily Mail that the Flat Earth International Conference — set to be held in 2020 — will take the cruise in 2020 for an annual event. He pointed out that this time, it's "just a cruise," and that the group isn't aiming to find and measure the "ice shore."

What else?

Hank Keijer, a cruise ship captain, is very skeptical — of the flat-Earthers — and told The Guardian that there's simply no way that the Earth isn't a sphere.

"I have sailed 2 million miles, give or take," Keijer said. "I have not encountered one sea captain who believes the Earth is flat."

You can read more information about the flat-Earth conspiracy here.