Rules: If you have Terrain Knowledge, you receive a bonus of 1 for checks using the following skills when in the named environment: Animal Lore, Orienting, Plant Lore, Survival, Tracking. Terrain Knowledge must be purchased individually for each of the following: Cave, Cultivated Land, Desert, Forest, Ice, Jungle, Mountain, Sea, Steppe, Swamp.
Prerequisites: The hero must have lived at least six months in the named terrain.
AP Value: 15 adventure points
Publication: Core Rules page 218