Advent of Code 2021: Under the sea |

Yet another year has past, yet another Advent of Code has been bestowed upon us by Eric Wastl. This time Santa has accidentally dropped the keys to his sleigh into the ocean somewhere and with your track record you are just the person to call in such circumstances. If nothing else, at this point you should have been conditioned to not question the logic of keys to a sleigh. Maybe he chains it to a pole for security.