Biomes | Six Feet Under Don't Starve Guide

Sunken Swamps - prepare for fighting Cave Spiders. These can be met while exploring caves. You can find Reed and Spiky Bush. You may also be attacked by Tentacles.

A tentacle is an annoying opponent.

Red And Green Fungus Forest - these appear in caves. There are: Mushtree, Red Mushtree, and Green Mushtree in there. If you have a Pitchfork, in your inventory you can dig up some Fungal Turf. You have also a chance of meeting a Bunnyman. Look out for Carrots too.