By plane: The nearest airport is Trondheim Airport Værnes, which is reachable from most international countries. From there, there are various buses and trains to transfer you to the city centre.
By train: NSB operates four daily trains between Oslo and Trondheim on the Dovre line.
By car: The Norwegian north-south highway E6 passes Trondheim. Parking in the city centre is easy, but expensive.
By bus: There are various buses which reach Trondheim from other cities, and do pass through locations not on the train lines, however they are consequently much slower.
This is an 18+ festival. Bring ID to ensure entry.