|Marsh Land is the second portal place to go 'Nil Spadia' which has the door of time travel for the past time. There was lake which called 'the Lake of Darkness' long time ago, however during the several 'the war of against Evils', millions and millions soldiers died here. And the lake slowly became swampland, and people think here is cursed. Also there are lost of dead soldiers are roaming around this doomed place and it's dangerous for time travelers.
This swampy area made of dead people inside, used to be a lake before the war against evil. Filled with mosses and tall reeds, not really tall at all.