Mangrove Boardwalk (Telok Assam)

The mangrove boardwalk at Telok Assam is one of the most productive wildlife walks at Bako — a short, flat elevated trail that delivers exceptional value for very little effort. The boardwalk extends from the park canteen along the eastern edge of the main beach into the mangrove forest fringe, with viewing platforms positioned for unobstructed sight lines into the mangrove canopy and the mud flats at low tide.

The mangrove forest is dominated by Rhizophora apiculata, the red mangrove, with its distinctive prop roots arching from the trunk into the mud, and the nipah palm (Nypa fruticans), which forms dense thickets in the most sheltered sections. The exposed mud at low tide is alive with organisms invisible from above: mud skippers — fish that breathe air and move across the mud on their pectoral fins — and fiddler crabs that emerge in hundreds, the males waving their single enlarged claw in species-specific courtship displays.

The boardwalk's reputation is sealed by the evening proboscis monkey assembly. Between 17:00 and 18:30 each day, troops of 20–30 proboscis monkeys descend from the forest interior to drink and feed on young nipah leaves before moving to sleeping trees on the coastal fringe. The boardwalk allows visitors to observe this behaviour at close range without disturbing the animals or entering the mud. Arrive by 16:30 to secure a good position on the viewing platform.

Beyond the proboscis monkey spectacle, the boardwalk is excellent for water monitors (large lizards up to 2 metres long that hunt crabs at the water's edge), brahminy kites and white-bellied sea eagles overhead, archer fish in the shallows shooting jets of water at overhanging insects, and silver leaf monkeys in the canopy edge. Mud skippers are present whenever the tide is out. Mangrove crabs (Scylla serrata, the giant mud crab) are sometimes visible scuttling between the prop roots.

The walk takes about 20 minutes at a relaxed pace and is fully accessible to wheelchairs and visitors with limited mobility. There is no climb, no significant uneven surface, and no need for special footwear. It can be done at any time of day, but mornings (06:30–08:00) and the proboscis monkey window (16:30–18:30) are most productive. After dark, a red-filtered torch reveals fireflies in the nipah palms and large water monitors resting between the prop roots.