The marsh is a wet, swamp-like biome with lots of Mud and Reed. Survival is fairly easy here, with mud armor, and the possibility of farming. Keep in mind you need sticks for tools, which you cannot find in this biome due to lack of trees to make planks and then sticks out of. Smelting the mud will give you mud bricks, as there will be quite a lot of mud there, giving opportunity to build with Mud Bricks. Although Mud Brick doesn't have a high blast resistance, it makes a decent shelter for your first night. As the mud balls are throw-able, they will be a nice ranged weapon for dealing with hostile mobs.
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