Knowledge of the Undersea

Your people's experiences of surviving in aquatic environments has made you especially good at exploring the watery depths.

• Increase your Constitution score by 1, to a maximum of 20.
• When submerged in the same water as another creature, you can use an action to accurately discern the creature's size and general direction from the ripples they create, regardless of whether you can see the creature or not. The other creature must be within 60ft of you. If the creature is actively hiding, you must succeed on a Wisdom (Perception) check contested by their Dexterity (Stealth) check. You have advantage on this Wisdom (Perception) check if the creature is within 30ft of you.
• You have advantage on Strength (Athletics) checks to navigate difficult terrain underwater.
• Moving through or around underwater plants that are not hostile to you does not cost extra movement.
• You can hear the calls of whales, dolphins and other vocal aquatic creatures from twice as far away as normal.
• If you spend ten minutes observing non-hostile aquatic creatures in their natural environment, you can predict any severe changes in weather or current (i.e. storms, earthquakes, or strong winds) for the next two hours.