Travel Advisory- Subways This Summer

http://www.sl.se/

Stockholm is in the process of building a new commuter train line, running north-south, called Citybanan. It will run under Stockholm City through a 6 kilometer long tunnel that is being built right now. Because of this ongoing construction, the subway's blue line between Kungsträdgården and Rådhuset will be closed between June 20th and October 19th.
As a guest of the Rival Hotel, this shouldn't disturb your travel plans too much as the hotel is on the red line. However, as I have blogged before, there is some great art in the Stockholm Metro system... and two of the "prettiest" subway stations will be closed during this time.