There is a stark contrast between the coastal areas of the Demesne of Opaeghia and its inland. The shores of Opaeghia, aside from its pristine beaches and picturesque fishing villages, are predominantly densely populated and littered with modern and sohisticated cities. All of those cities are bustling hubs of trade and commerce, which still have managed to maintain a romantic and picturesque atmosphere. Opaeghia's coastal cities are stunningly beautiful with their cobbled streets and half-timbered houses; many streams and canals crisscross those cobbled streets, and breathtakingly beautiful constructions like mansions and halls are common.
Opaeghia's inland, however, is a lush green world where clear brooks and sparkling rivers run through dark jungly woodlands and where the ground is made of mud and rotting leaves. There are, however, also several large open grassy spaces and expansive, marshy lowlands. The forest is teeming with stone circles and piramids, worship waters, misty dales, hot springs, eerie ponds, mysterious ruins and remains of lost civilizations, awesome temples, enigmatic lakes, as well as secluded caves and grottoes. That vast wilderness is home to a unique diversity of plants and animals. A huge number of species of plants and animals are endemic to the forest, meaning they're not found anywhere else on Reikistjarna, and there are plenty that haven't even been discovered yet.