You survived harsh conditions as a shipwrecked castaway, developing resilience and endurance beyond normal limits.
• Increase your Constitution by 1, to a maximum of 20.
• Your hit point maximum increases by an amount equal to twice your level when you gain this feat. Whenever you gain a level thereafter, your maximum hit points increase by an additional 2.
• You have advantage on Constitution checks to resist exhaustion caused by natural environmental effects such as heat, humidity, storms, and forced marches.
• You can always find enough food and fresh water each day for yourself (and one additional person), provided the environment contains vegetation, wildlife, or natural water sources.
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