Survival Master

The character is resilient and tenacious, able to live through environmental hardships that would kill lesser beings.
Prerequisites: Constitution 13, Endurance.
Benefit: The character gains a +2 bonus on all Survival and Navigate checks. This bonus also applies as a competence bonus to Fortitude saves versus environmental conditions, such as exposure to extreme cold or hat. This bonus stacks with the bonus from Endurance. If the character has 10 or more ranks in one of these skills, the bonus increases to +4 for that skill.