Aquatic Adaptation (ToS)

You tap into the primal forces of water and nature, granting yourself or a willing creature you touch the ability to adapt to aquatic environments. While submerged in water, the target can breathe underwater, gains a swim speed equal to their current walking speed, gains darkvision with a range of 60 feet, and gains resistance to cold damage.

At Higher Levels: When you cast this spell using a spell slot of 5th level or higher, you can target one additional creature for each slot level above 4th. The additional creatures must be within 30 feet of each other when you target them.