Travel to Tromsø, hitchhiking or by plane.
Go to Prosneset (bus terminal).
Click on Items and Equipment.
Click on the gate.
Click on Use Item.
Wait 20 minutes.
After 20 minutes you arrive in a locale called Highway to Hell.
Go to the current locales' page and click on Items and Equipment.
Click on the gate.
Click on the gate.
Click on Use Item.
Wait for 8 hours and 20 minutes.
Congratulations! You are in Hell. Follow the next steps to go back.
Click on the gate.
Click on Use Item.
Wait 1 hour.
Congratulations! You survived an exciting trip to hell.