wistergrass marsh is a common training spot for northern shinobi. the flat terrain is damp, and without the proper knowledge of the terrain, one could fall right into a pocket of quick-mud. the shinobi here utilize the misty air and tall grass to hide from their opponents. wistergrass marsh isn't just a wetland area for training, however, there are also spacious plains where gardens have been planted, using the surrounding water and marsh to irrigate the growing plants.