Icebreakers keep 23 ports open for traffic even in winter. The ports in Gulf of Bothnia need icebreakers in average six months a year, while in Gulf of Finland icebreakers are needed for three months a year.
Icebreakers keep 23 ports open for traffic even in winter The ports in Gulf of Bothnia need icebreakers in average six months a year while in Gulf of Finland icebreakers are needed for three months a year