The first thing you notice isn’t the height. It’s the sound. A kind of damp hush broken by one impatient cicada. Then—slap!—a longboat smacks the river’s skin and you duck under a branch that looks much too low. Someone laughs. (You? maybe.) Welcome to the Temburong River, gateway to one of Borneo’s last true jungles.

An hour upriver and the world feels ancient. The air grows thick, green, almost edible. Suddenly, through the mist, a silver spine appears—towers and ladders glinting like some forgotten relic of explorers past. The Ulu Temburong Canopy Walk. It looks absurdly high. Okay, fine—it is absurdly high.

The climb begins quietly. Metal steps wet from rain, railings cool to the touch. Every few flights you stop, pretending to take a photo but really to breathe. The forest doesn’t mind. It exhales right back—rich with resin and the faint sweetness of wild ginger.

At the first landing, the view is all movement. Ferns ripple. Something rustles—monkeys, probably, or maybe just the wind playing tricks. You climb again. A narrow bridge stretches ahead, swaying a little too much for comfort. You grip, laugh nervously, let go. And there it is: green upon green upon green, until it almost stops being color and becomes sound.

By the final tower, conversation fades. The canopy spreads out like a living map—veins of branches, pockets of mist, one bright bird flashing across the gap. You forget the metal under your boots. You even forget to take the photo this time.

The park itself—Ulu Temburong National Park—has been protected since 1991, and it shows. No cars, no snack stalls, no noise except nature’s own. You can only reach the walkway with a licensed guide, which keeps it blissfully uncrowded. Most tours fold in a dip beneath a small waterfall and lunch at Ulu Ulu Resort, the only lodge around.

Evening there feels cinematic: cicadas screeching like faulty speakers, the river murmuring in counterpoint. You eat under a tin roof while the rain performs above. The rooms are simple—wooden floors that creak just enough to remind you they’re real—but comfortable enough that you start thinking one night won’t be enough.

If you manage the dawn climb, do it. The mist hovers just at chest height, and the jungle glows like it’s lit from within. For a moment you can almost believe the forest is breathing with you—slow, deep, patient. Then someone’s stomach growls, and you all laugh, human again.