Location from Dune by Frank Herbert
A vast sand sea and Fremen sietch territory — where Paul Atreides earned his place among the desert people and the seeds of holy war were planted.
The Habbanya Erg is the deep desert distilled to its essence — nothing but sand, sky, and the things that live beneath the surface. The silence is so complete that a whispered conversation carries for hundreds of meters. The wind creates eerie harmonics as it passes between the great dunes, a sound the Fremen call 'the desert singing.' This is Fremen proving ground. The sietches in the surrounding rock country send their young warriors here to demonstrate desert mastery — navigating by stars, calling and riding worms, surviving on minimal water. Paul passed through this territory during his integration with the Fremen, and the stories of what he accomplished here became the first legends of Muad'Dib.
An immense erg — a sand sea of towering dunes with no rock outcroppings for hundreds of kilometers in any direction. The sand here is finer than elsewhere on Arrakis, almost powder, creating a surface that shifts underfoot and makes travel exhausting. The dunes are taller here — some reaching 400 meters. At their crests, sand streams off in the wind like smoke. Distant worm sign is visible as a moving ridge line on the horizon.
Also known as: the Habbanya, Habbanya sand sea