The coastal nation of Rhiavhaar was the homeland of Lhazaar, the "explorer" who paved the way for the human settlement of Khorvaire. The sailors of Rhiavhaar often took to slaving and piracy, and Rhiavhaarian ships were feared throughout the Sea of Rage. Today this region is the westernmost outpost of Riedra, and authorized trade with Q'barra and the Lhazaar Principalities passes through the old Rhiavhaar port of Dar Ulatesh. Rhiavhaar is an important hub for the Riedran navy—known as the Harmonious Sail—and a gateway to Khorvaire, so significant military forces are deployed here. The Thousand Eyes are especially active in this region.
The province of Rhiavhaar includes the Aventus Islands, which serve as a staging area for the Harmonious Sail. These islands hold ruins of the lost aventi nation, but the Riedrans shun these areas.
Although the province seems to be under the thumb of the Inspired, having a high concentration of spies and secret police, the Rhiavhaarians aren't as devoted as the Corvagurans. A variety of dissidents hide here.