@mawr Skadi, Norse goddess of winter, skiing and stuff like that. She is neither technically Aesir nor Vanir; she's a Jotun. She literally marched up to Asgard and demanded marriage the handsomest god as weregild -- and the gods made her choose who had the prettiest *feet*, which turned out to be Aegir, god of the sea, whose feet were really clean!
Skadi isn't really a sea type so this didn't last and she wound up with Uller, an archery god nobody knows all that much about.