Marsh

Marshes are a recurring type of terrain of the World Map in the Final Fantasy series. Their location varies, but they are often inhabited by the Undead. They are always walkable on foot.

Final Fantasy
Marshes can be found west of Elfheim, at the Marsh Cave region, make the entirity of Melmond peninsula and around the Citadel of Trials.

Final Fantasy II
Huge marshlands are found in the surroundings of Fynn and Altair, and Mysidia.

Final Fantasy III
Marshes can only be found in the vicinity of Amur and Saronia.

Final Fantasy V
Marshes can only be found in Galuf's World, and are a very prominent terrain in that world. Notable marshlands are the ones in western Gloceana and around Bal.

Final Fantasy VII
The Marshlands area is located near the Grasslands region, south of Kalm, and is home to the Midgar Zolom, a species of gigantic snakes. A Chocobo can be used to cross the marshes faster than the area's endemic snakes.

Final Fantasy IX
Qu's Marshes are found thoughout the world, there are four such marshes; one on the Mist Continent, one on the Outer Continent and two on the Forgotten Continent. They are home to the Qu species and are filled with frogs, a Qu delicacy.

Final Fantasy XII
The Nabreus Deadlands was once a prosperous region before being turned into a wasteland for eternity by the extreme Mist discharge by the Midlight Shard.