Getting there ...
Transportation: Take a flight from Jakarta to Medan, or from Singapore to Medan. From Medan you can go by bus or rent a car, which will get you there in four hours.
It's better to start the journey from Medan in the morning, or after lunch at the latest, in order to arrive there before sunset. Traveling at night requires caution as the area is isolated. Better still if you can go there as part of a group.
Accommodation: The Sitinjo site has a small inn that can accommodate up to 100 visitors. Alternatively, there are hotels in Sidikalang, nine kilometers from Sitinjo.