The journey from Penajam to Bontang covers approximately 280 km. You must first travel to Samarinda and then continue north along the Trans-Kalimantan Highway. The road is well-maintained but involves passing through busy urban centers. Private car or intercity bus is the most practical way to reach this industrial city. Expect a total travel time of 7 to 8 hours depending on road traffic.
Total Distance: 280 km driving distance, 190 km straight-line air distance.
Change buses at the Samarinda terminal for the final leg to Bontang.
Dry season, as heavy rain can occasionally affect road conditions.