How does Aquaman swim without kicking?

How does Aquaman move through the water without moving his legs or arms?

I tried Googling and got a bunch of articles discussing how fast he can go, but not his actual method of propulsion. Some people argued that ‘Superman can fly without wings’, which I would agree with - if Aquaman could also fly. Superman moves through air, water and space the same way, but Aquaman is limited to water. He can’t defy gravity, he doesn’t seem to have hydrokinesis. He just zooms along.

Be honest…is it farts? Does he propel himself by farts?