Trip in Helsinki for two days with freezing weather

This Helsinki trip was in the early January. Weather: Sunny, windy and freezing (-10 degree) Attractions: 1. Helsinki Senate square( located in the central Helsinki and walking distance from the central station, worth going with historical architecture, representation of the historical, religious and commercial power of Finland) 2. Helsinki Cathedral ( it is right next to the Helsinki Senate Square, white outlook with dome shaped architectural features, worth for photo taking) 3. Uspenski Cathedral ( located up on the mountain, next to the market square of Helsinki, spectacular view in night view) tips for travelling in Helsinki or Finland Currency: Euro Travelling: by plane or by cruise from Oslo or Stockholm Weather: the road is covered by ice or snow and it would be difficult to walk if you have heavy luggage, so it is suggested to find hotel next to the central station activity: since the sunlight hour is short in Helsinki during winter, so it is suggested to go out earlier. shops are closed early and it is especially cold at night.