Haunted Wasteland

The Haunted Wasteland is a massive desert between Gerudo Fortress and the Desert Colossus, far outside the land of Hyrule in Ocarina of Time. As well as being extremely difficult to navigate, with a lack of landmarks and constant sand-storms, it is also said to be haunted. However, Link finds that the Poe that lives in the desert is actually quite helpful. The desert is mostly empty except for the colossus, though there is a Flying Carpet where a merchant is willing to sell items to Link.

Trivia

 * The Haunted Wasteland's Terminian counterpart seems to be the first part of Pinnacle Rock.