Winter is the time to go to the.. ocean. When the weather is steadily below zero and the sun never rises above the horizon it is the high time. High time to go and see the auroras in the land of no-way-getting-there-in-the-summer.
There are no auto roads that way in summer. In winter there is small chance to get there. Even if you have suv or big gas goggler jeep you still can be sure in reaching the shores of the Polar Ocean.
Why people try to reach those salty frozen waters there? Maybe taking a look on the photos can give a clue.