Brunei is certainly not the most mountainous of countries. Its highest point is actually the second-highest peak of Bukit Pagon, the true summit of which is entirely in Malaysia and best accessed via Sarawak. That leaves the much smaller Bukit Teraja, which appears to be a decent half-day out. 

Map of Brunei’s Spesial

Click on the blue arrow (top right) to see your current location on the map

Statistics and Links to Brunei’s Spesial

Name	Elevation	Drop	Ribu Category	Island
Bukit Teraja	412 m	332 m	Spesial	Borneo