You have a particular aptitude for living in a particular environment.
Prerequisite: none.
Benefit: Choose one of the following environments: aquatic (on or under the sea), cold desert (tundra), forest, hills, jungle, marsh (bogs, moors, swamps), mountain, plains (farmland, grassland, steppe, prairie), underground (caves, underworlds), urban (cities, towns), warm desert (badlands, sandy desert). While in that environment, you get the following benefits.
Special: You can gain this feat multiple times, and its effects can stack. Each time you take this feat, it can either apply to a new environment or an already favoured environment. You cannot take this feat for the same environment a second time until you have reached 5th character level. From that point, the minimum character level to take the feat again for an already favoured environment increases by 4 each time (that is, a third time at 9th level, a fourth time at 13th level, and so on).