Bitcoin investor Chun Wang chartered a SpaceX flight for himself and three others in a Dragon capsule that was outfitted with a domed window that provided 360-degree views of the polar caps and everything in between.
Wang declined to say how much he paid for the three-and-a-half day trip.
The quartet, who rocketed from NASA's Kennedy Space Center on Monday night, returned off the southern California coast.
It was the first human spaceflight to circle the globe above the poles and the first Pacific splashdown for a space crew in 50 years.
The Chinese-born Wang, now a citizen of Malta, invited Norwegian film maker Jannicke Mikkelsen, German robotics researcher Rabea Rogge and Australian polar guide Eric Philips, all of whom shared stunning vistas during their voyage.
"It is so epic because it is another kind of desert, so it just goes on and on and on all the way," Rogge said in a video posted by Wang on X while gazing down from orbit.
Mikkelsen packed the capsule with camera equipment and spent much of her time behind the lens.
All four suffered from space motion sickness after reaching orbit, according to Wang.
But by the time they woke up on day two, they felt fine and cranked open the window cover right above the South Pole, he said via X.
Besides documenting the poles from 430km up, Wang and his crew took the first medical X-rays in space as part of a test and conducted two dozen other science experiments.
They named their trip Fram2 after the Norwegian sailing ship that carried explorers to the poles more than a century ago.
A bit of the original ship's wooden deck accompanied the crew to space.
Their medical tests continued at splashdown.
All four got out of the capsule on their own, heaving bags of equipment so researchers could see how steady returning space crews are on their feet.
They pumped their fists in jubilation.
SpaceX said its decision to switch splashdown sites from Florida beginning with this flight was based on safety.
The company said Pacific splashdowns will ensure that any surviving pieces of the trunk - jettisoned near flight's end - falls into the ocean.
The last people to return from space to the Pacific were the three NASA astronauts assigned to the 1975 Apollo-Soyuz mission.
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