Lake Ira is the largest freshwater lake on Age (not to mention all of Pangaea) and an important part of the story in Monster Rancher Advance. Many villagers share rumors with you about a Loch Ness-like monster stealing fish from the fishermen, and when you finally beat it in a battle, you catalogue it and name it Irassie. It turns out to be a new type of Lesione.
Lake Ira is known for its fish export, and for the number of romantic legends surrounding it.