One of the main attractions of Brunei is Ulu Temburong National Park. Brunei has preserved its rainforest, and to get there, one must take a commuter boat upriver to a car, drive to another river, and then take a longboat.
Inside the park, the thing to do is to view the sunrise from atop the canopy walk, which rises 164 feet above the rainforest floor. This means getting up at 4:30 am for a quick breakfast and then about an hour’s walk steeply up the hills.
A warning at the end:
COHN17 