Departing from the Sarawak Boat Club, the cruise glides toward the open waters near Santubong, where the river widens and wildlife sightings are always a possibility. With a bit of luck, Irrawaddy dolphins may surface nearby. The route winds through quiet mangrove channels, creating opportunities to spot birds and other river-dwelling creatures along the banks. As evening approaches near the Salak estuary, attention turns to one of Borneo’s most iconic primates — the proboscis monkey. These elusive animals are sometimes seen perched high in the riverside trees as they gather in small family groups before nightfall. When night settles in, the river reveals a different kind of magic. Fireflies illuminate the mangroves with soft, rhythmic flashes, while the boat ventures upstream to observe this natural light show. A careful watch along the water’s edge may also reveal crocodiles, their presence betrayed by glowing eyes reflecting torchlight.The cruise returns under the cover of darknes.