Conspiracy theorists are organising a cruise to Antarctica to prove that Earth is flat. Details are vague at the moment but it is understood the voyage will be a round trip.

The cruise is the latest event put on for the burgeoning Flat Earth community, which believes the world is not a sphere but a flat disk encircled by Antarctica’s impenetrable icy walls.

There are various competing theories within the Flat Earth community, but the prevailing consensus seems to be that our disk-shaped world sits beneath a giant dome along with the sun, the moon and the stars. Some Flat Earthers liken our planet to a giant snow dome.

Those setting sail on the cruise – scheduled to depart sometime in 2020 – will seek to confirm such theories, glossing over the fact that they will be guided by a GPS system that relies on the Earth being round.

The cruise is being put on by the organisers behind the Flat Earth International Conference (FEIC), which will host its third annual jamboree in Dallas, Texas this November.

The organisation has yet to release details of the voyage – claiming only that it will be the “biggest, boldest, best adventure yet” – but its website assures would-be passengers that the cruise ship will not drift off the edge of the planet.