Is the gymnasium swimming pool open in winter?

The swimming pool is indoors with heating equipment, and there is no accident. The swimming pool in the north is open in winter. Of course, if something goes wrong with the house, equipment, facilities and staff, the museum can't be opened not only in winter, but also in summer. There are also reasons such as unqualified water quality inspection, unqualified health inspection and imperfect epidemic prevention and fire prevention measures. And it is not allowed to open the museum. Southerners who have not spent the winter in the north may not understand this situation.