Boat

If you arrive to Oslo with Stena Line or DFDS, the ferry will dock on Vippetangen. From Vippetangen you can take bus number 60 to Jernbanetorget (by the Central Station).
From Jernbanetorget you can take tram number 12 and 13 and bus number 30 and 31, which will take you to the hostel. The stop is called Hausmannsgate.
If you arrive Oslo with Color Line you will dock on Hjortneskaia. Bus number 1 will take you to Jernbanetorget (by the Central Station). From Jernbanetorget you can take tram number 12 and 13 and bus number 30 and 31 which will take you to the hostel. The stop is called Hausmannsgate.
Taxi is available on both ports upon arrival.