> half of it freezes over in winter. Nowadays only gulfs properly freeze in winter but there are reports from XV century of people travelling over the ice in s

> half of it freezes over in winter. Nowadays only gulfs properly freeze in winter but there are reports from XV century of people travelling over the ice in sleighs and even tales of inns being built on the ice. That was a little anomalous due to the Little Ace Age but even in the XX century ice floe would cover over 90% of the Sea once in a while.