Originally Posted by
Peregrine415
Thinking of my own e23-hour layover experience a year ago in August 2009:
(1) recommendations for such a short stay (sightseeing)?
Definitely take #631 city bus. Buy a 24-hour regional ticket for 12 Euros and use it all day. It will be dark by the time you arrive at your hotel. I suggest taking it easy on that first evening. Have a meal in the hotel, in the harbor or in Lasipalatsi.
There is no bus #631. I think you mean #615, that's the airport bus.
As for what to do in December, there's usually a Christmas market on Esplanadi, and another (indoor) one at the Vanha Ylioppilastalo. Lots of artisans selling their wares.