The Mysterious Forest is an area introduced in Monster Hunter EX. It is similar to the Everwood of 4th gen, since the terrain and map is randomized with every visit. It is home to a diverse range of monsters. There are also many enviroments, including Forests, Arid biomes, Caves, and even Lakes and rivers. Hunters can go on "Expeditions" in the Mysterious forest to hunt monsters and gather rare items, including Relics that can be polished into powerful weapons and armors. Guild Quests are also taken here.