Native Waters Feat 1
Source Pathfinder Lost Omens: Impossible Lands
You were born with or obtained a special connection to either fresh water or salt water. Once made, this decision can't be changed. Whenever you take your full rest in a natural body of water of the type corresponding to your connection, you recover additional Hit Points equal to your level, and if you have the Doomed or Fatigued conditions, you reduce them by 2 instead of 1.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
UndineA type of geniekin descended from a being from the Plane of Water.