Weyard (ウェイアード, Weyard) is the world on which the Golden Sun games take place. It is a flat world, and the water of the oceans continually flows over its edges. In land locked places where there is no water to flow off the edge of the world, there is a sheer drop that goes down for an unknown height into nothingness. The places where the water begins its fall into oblivion are collectively called Gaia Falls. Weyard appears to be based on a flat map of the real Earth ,as it was a couple of million years ago, with the edges represented by Gaia Falls (the continents are in their generally correct locations with the exception of Indra, which was artificially moved by the tidal wave in the beginning of Golden Sun: The Lost Age.)
Details of Weyard's ancient past were revealed sporadically throughout the Golden Sun games. See Weyard (Ancient past) for full details.
Similar to Earth, Weyard has seven continents. It is unlikely that Weyard's continents follow the plate tectonics of Earth, as a tidal wave was able to move the entire continent of Indra southwards and wedge it between Southern Gondowan and Western Osenia.
- Angara - This is the northern central landmass on Weyard. It is where five of the protagonists from the Golden Sun games hail from. It is also the largest and possibly the most populated continent. Angara bears similarities with Europe, continental East Asia and the Near East.
- Gondowan - This continent is directly south of Angara. It is where Sheba lived most of her life. Gondowan has similarities with Africa and the Middle East.
- Indra - The starting location in Golden Sun: The Lost Age. Indra is currently wedged in between Osenia and Southern Gondowan. It was located much farther north before an earthquake and tidal wave moved it at the beginning of TLA. Indra bears similarities with India.
- Osenia - Osenia is currently located to the east of Indra and is the Easternmost continent. Osenia bears slight similarity to Oceania and Australia.
- Hesperia - A continent in the Great Western Sea, north of Atteka. It is inhabited by people resembling North-American Native Americans.
- Atteka - A continent resembling South America located in the Western Sea, just south of Hesperia. Contigo and Jupiter Lighthouse are located here. The civilization of Anemos used to reside here.
- Tundaria - Tundaria is a frigid, Antarctica-like continent at the extreme south of Weyard. It is devoid of habitation and its only feature is Tundaria Tower.
 Smaller Land Masses
There are a number of locations scattered around the Great Eastern Sea and Great Western Sea, but are too small to be called continents in their own right.
- Northern Reaches - A region of pack ice and perma-frozen land in the extreme north of the world. The only known settlement is Prox, and Mars Lighthouse is located here.
- Lemuria - An ancient island-city in the middle of the Sea of Time. Alchemy remains unbound here. (This appears to be based off the legends of Atlantis and Lemuria)
- Nihan - A large island in the Eastern Sea east of Angara that resembles real-world Japan. Contains the village of Izumo and Gaia Rock. Later, Izumo is destroyed by a tidal wave, and the village of Yamata takes its place.
- Apojii Islands - An archipelago of small islands in the Eastern Sea at the very edge of the world and adjacent to Gaia Falls. Contains Aqua Rock and is inhabited by island dwellers that resemble Polynesians or Indonesians.
- Treasure Island - A large island in the northern part of the Eastern ocean, it contains a dungeon and an optional boss, the Star Magician, in the second game.
- Kalt Island - A smaller island located south of the Northern Reaches. It contains the Mercury Djinni Gel, and an Apple that is obtainable after the reunion.
- A number of Islets are located around the seas; the West Indra Islet, N Osenia Islet, SE Angara Islet, Sea of Time Islet, E Tundaria Islet and the SW Atteka Islet.
 Bodies of Water
Weyard has many bodies of water, and most are named, with the exception of rivers, which are hardly mentioned at all in the games.
- Great Eastern Sea - This is the largest body of water in Weyard. It contains Izumo and the Apojii Islands and it surrounds the reefs that border the Sea of Time. Angara, Gondowan, Indra and Osenia all have areas of coastline meeting this ocean.
- Great Western Sea - This the second largest body of water in Weyard and encompasses most of the western side of the world. The Western Ocean surrounds Atteka and Hesperia. Angara and Gondowan both have coastline along it.
- Sea of Time - A small body of water in the middle of the Eastern sea, separated from it by large impassable reefs. The Sea of Time surrounds the island of Lemuria and has notoriously wild currents and is covered by a constant blanket of fog.
- Karagol Sea - An inland sea that is in between the continents of Angara and Gondowan. The Karagol Sea is traversed by trading vessels from Kalay and Tolbi, and is the location of Crossbone Isle. It is possible that the Karagol Sea is based off of the Mediterranean Sea.
 Creatures and races
Humanity is primarily the one sapient race located across Weyard in sparsely spread out settlements, and in the wilderness between is all manner of wildlife. At the start of Golden Sun, when Psynergy Stones rain all over the world, the wildlife become savage monsters, and other more fantastic creatures such as the undead (corporeal ghosts, zombies, and animate skeleton) and dragons arise as well. It seems to be implied, however, that monsters did exist in smaller numbers beforehand. It is also known that there was an increase in monsters around the time of the great flood.
Other human-like races are found on Weyard, but certainly not anywhere near as diverse and varied as a high-fantasy world such as Lord of the Rings. One of the visitable settlements is home to a race of mining dwarves, while another is home to a race of humans that transmogrify into lycanthropes when they look upon the full moon at night. The northernmost settlement of Prox is home to a race of cold-resistant humans with lizard-like scales and pointed ears, and a powerful sorcerous command of fire-based Psynergy.
Other sentient life in Weyard includes the elder tree spirits, the Waelda, that live in Kolima Forest, the chiefs amongst them named Tret and Laurel. Initially they were guardians of the forest to the extent that Tret's death would mean the death of the forest. Falling Psynergy stones gave them both powers but also affected their emotions, and therefore their actions severely. While they were later healed, they still possess their powers. There are other Waelda effected by the Psynergy stones, as made clear by Tret and Laurel.
In addition to the above corporeal creatures and races are a diverse assortment of spiritual entities. Formerly residing in Mt. Aleph and collectible throughout both games are magical creatures called Djinn, which come in four varieties, one for each element. These creatures each have a unique ability based on its element, and their general power can be harnessed by Adepts to bolster their own Psynergy-based powers, or to call upon and summon powerful entities to cause massive damage to the opposition. These spiritual entities are embodiments of their respective elements and take the form of mythical entities prevalent in real world cultures, examples including the Nordic god Thor using an electricity-laden hammer, or a demon duke named Haures, or a deadly Grim Reaper-like entity named Charon. The greatest of these summonable spirits is a goddess named Iris.
The retail version of Golden Sun shipped with a stylised map of Angara and northern Gondowan, while Golden Sun: The Lost Age shipped with a map of the whole of Weyard, albeit missing the names of many places.
- reshadgs.tripod.com - A scan of the map that shipped with the with Golden Sun: The Lost Age with locations in English.
- thelostwaters.com - Scan of the world map of the first game (click the first link for the map).
- thelostwaters.com - Scan of the world of the second game.
- GameFAQs - Taken from the in game map, this map highlights the locations visited in The Lost Age.