The NHM 2013 has happened in Järna, near Södertälje, in the province of Södermanland in Sweden, ca 50 km southwest of Stockholm.
Venue: Solvikskolan, Yttereneby Solvik, 15391 Järna

GPS Coordinates:
N 59.04864°
E 17.62004°
(find it in Google Maps)
It’s quite easy to go to Solvikskolan by car, just drive on E4 and take exit #141. If you’re coming from the south (as you are if you arrived by plane at Skavsta airport), it’s just after you see the big “Saltå Kvarn” on your right-hand side. Directly after you’ve taken the exit, turn left, then next right (at this turn, the hostel (Håknäs Vandrarhem) is at your left instead). Then straight on for 3,5 km. At the bus stop, turn left onto the smaller road and keep straight on for another 1 km, then you’re there! (On your left side.)

If you come by plane to Arlanda airport, take the Arlanda Express train to Stockholm Central station and continue reading.

If you come by train/bus from Stockholm Central station, you can check train/bus connections online here – type Yttereneby (Södertälje kn) as your destination.
You might take the train to Södertälje central station, switch there to bus 784 (direction Norrvrå) and leave the bus at Yttereneby. A gravel path leads up to the Solvik school which is on your left side.