Ulu Temburong National Park

Pristine rainforest reached only by longboat, with a canopy walkway rising above the jungle floor — one of Borneo's best-protected forests, kept intact by Brunei's oil wealth rather than logging.

Access is via longboat up the Temburong River followed by a jungle trek to the aluminum canopy walkway, 60 meters above the forest floor. Day trips run from Bandar Seri Begawan via Limbang, Malaysia.