Undine have the following adjustments within the Realm setting.
Type: Undine are Medium creatures that count as an outsider (native) and a humanoid (human) for any effect related to race, including feat prerequisites and spells that affect humanoids.
Undine gain the following additional abilities -
Amphibious: Undines gain the aquatic subtype and amphibious special quality.
Water Sense: Undines can sense vibrations in water, granting them blindsense 30 feet against creatures in contact with the same body of water.