Ursa, Arctic

ability score increase: +2 Str, +1 Dex, +1 Con

Size: Medium

speed: Your base walking speed is 30 feet, 40 feet on all fours and you have a swimming speed of 40 feet.

parent race: Ursa

race features:
One with the Cold

One with the Cold

Ursa

You have resistance to cold damage, and are naturally adapted to extreme cold (down to an ambient temperature of –30º). Thanks to their clawed toes they can move across and climb icy surfaces without needing to make an ability check. Additionally, Difficult Terrain composed of ice or snow doesn't cost it extra moment.

Marine Hunter

Ursa

Your kind practically dance through the waves, and are capable of leaping high into the air.
You have a swim speed of 40 feet.
You can also hold your breath for up to 1 hour.
You can also perform high jumps and long jumps from the surface of water as if it were a solid surface by “swimming” up from below (essentially breaching in a similar manner to dolphins or whales). Due to a combination of your thick fur and hide. When you aren't wearing armor, your AC is 12 + your Dexterity modifier. You can use your natural armor to determine your AC if the armor you wear would leave you with a lower AC.
A shield's benefits apply as normal while you use your natural armor.