Reviewed · FIREFLY WATCHING TOURS
Borneo (Klias) River Cruise & Fireflies Tour
The best part of this day trip comes after sunset, when fireflies turn the mangrove trees into flickering Christmas trees. Before that, you cruise the Klias River looking for proboscis monkeys, long-tailed macaques, silver langurs, hornbills, kingfishers, and perhaps a crocodile.
I like the chance to see Borneo wildlife in a natural setting, and I like that the $50 price includes hotel pickup, both boat rides, tea, local snacks, dinner, fees, and return transport. Guides such as Khatty, Sulani, Roddy, and Jason have earned praise for spotting animals and explaining the river. The catch is the long road trip: expect roughly two hours each way, with some reports of bumpy roads and van air-conditioning trouble.
Key points to know before booking

- The firefly cruise is the evening highlight: You may see whole trees blinking in the darkness, but rain and bright moonlight can reduce the display.
- Proboscis monkeys live wild here: Sightings are expected, but their distance and position cannot be controlled.
- The drive takes much of the day: Klias is about 132 kilometers from Kota Kinabalu, so this is a road-and-river outing, not a quick city excursion.
- Dinner and refreshments are included: You receive coffee or tea, local sweet snacks, and a Malaysian buffet meal.
- Bring patience and realistic wildlife expectations: You could see monkeys, langurs, birds, reptiles, or crocodiles, but nature does not follow a schedule.
- Protect the darkness: Turn off your phone flash during the firefly ride. Bright screens spoil the view for everyone.
Why the Klias Wetlands are worth the long ride
Klias Wetlands offers a very different side of Sabah from Kota Kinabalu’s waterfront, malls, and city hotels. The river runs through mangrove country, where wildlife gathers around the water and trees. You are not visiting a zoo or a staged animal show. The monkeys move through their own habitat, which makes sightings special, but also unpredictable.
The signature animal is the proboscis monkey, a Borneo native with a long nose and a distinctive pot belly. You may see one sitting high in a tree, a group moving through mangroves, or only a partial view through branches. Some boats spot several groups, while others get fewer animals. Binoculars can help because the monkeys are sometimes farther from the riverbank than you expect.
The setting adds value even when the animals hide. The river is generally quiet and smooth, and the mangrove banks create a sheltered route for the boat. You may also see long-tailed macaques, silver langurs, kingfishers, hornbills, large lizards, and crocodiles. One of the more fortunate combinations reported on this route included proboscis monkeys, a hornbill, a crocodile, and other small wildlife in one afternoon.
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The 1 p.m. pickup and ride to Klias

Pickup begins around 1 p.m. from hotels in the Kota Kinabalu city area. The vehicle may be a van or minibus, and the tour can include up to 30 people. The road journey takes about two hours, covering roughly 132 kilometers, though road conditions can affect the timing.
This is the main practical drawback. The tour lasts about nine hours, but a large share of that time is spent sitting in a vehicle. Some people find the ride worthwhile because it leads to a genuine wetland setting. If you dislike long road transfers, you may find the day tiring, especially if your van is full or the air-conditioning is not working well.
Past reports include clean, comfortable, air-conditioned vehicles and drivers who pointed out places along the way. There have also been complaints about a hot rear seat, a weak air-conditioning system, and one serious vehicle delay caused by a battery problem. These appear to be transport issues rather than part of the wildlife program, but you should know that comfort can vary.
Bring something small to read or listen to during the ride. Bottled water and soft drinks are not included, so buy them before leaving or at the stop if available. Snacks beyond the included local treats are also your own expense.
Tea and local snacks at the river base

Arrival is planned for about 4 p.m. At the river base, you have time to rest with coffee, tea, and sweet local snacks. This pause breaks up the drive and gives you time to use the facilities, settle in, and prepare for the first boat ride.
Do not expect a full meal at this point. The included refreshments are simple, but they are useful after the road journey. The atmosphere is more informal than polished, which suits the nature of the outing. You are here to get onto the river, not spend the afternoon inside a resort.
The first cruise, around 4:50 p.m.
The first river cruise is scheduled for about 4:50 p.m., when the late afternoon light is still useful for spotting animals. This is your main chance to look for proboscis monkeys and other wildlife along the mangrove edges.
The boat ride is often described as smooth and quiet. That matters because engine noise and rough water can make animal watching difficult. Guides and boat staff scan the trees with impressive attention, and the better guides explain what you are seeing rather than simply pointing toward a branch.
Khatty has been praised for her animal spotting and clear explanations. Sulani has also received strong comments for sharing information during the drive and cruise. Other positive accounts single out Roddy as a careful driver and Jason as a friendly guide. Service can vary by departure, so your own guide may be different.
You should set your expectations carefully. The operator can take you to proboscis monkey habitat, but cannot decide how many monkeys appear, how close they come, or whether they remain hidden. This is one reason I prefer to think of the cruise as wildlife watching rather than a guaranteed animal show.
The cruise may last around 30 minutes according to some accounts, while the published schedule describes the first cruise as part of the afternoon program and the operator explains it as about an hour. Either way, do not assume you will spend several hours deep in the swamp. Some routes pass houses and roads because development has reached parts of the river.
That mixture of natural habitat and settled areas is worth understanding before booking. Klias is not untouched wilderness from start to finish. You can still see mangroves and wild animals close to communities, which is part of what makes the outing accessible from Kota Kinabalu.
More river and sunset cruises around Kota Kinabalu
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Malaysian buffet dinner before dark
After the first boat ride, you receive a buffet dinner of local Malaysian food. It is included in the price, along with the earlier tea and snacks. Several meals have been described as tasty or good, while some diners found the flavors less appealing.
The food is a useful part of the value, but it should not be the main reason you book. This is local cuisine served as part of a nature outing, not a restaurant-focused food tour. If you have a narrow diet or want extra snacks, bring your own supplies or budget for items sold separately.
The meal also creates a natural pause between the two cruises. By the time you finish eating, daylight has faded and the purpose of the second boat ride becomes clear.
The firefly cruise after sunset

The night cruise is the most distinctive part of the outing. The boat moves along the dark river while you look toward the mangrove trees for tiny flashes of light. When conditions are good, many fireflies gather in particular trees, producing a blinking effect that looks almost like strings of lights.
Some fireflies may fly close to the boat, and rare accounts describe them landing on a person’s hand. You might also get a clear sky filled with stars, and one report noted possible glowing water in places. Treat those details as fortunate extras rather than promises.
Weather matters. Fireflies are harder to see in rain, and one rainy evening produced very few. A bright full moon can also make the lights less visible. For the darkest conditions, check the moon phase when possible and avoid assuming every departure will produce the same display.
Your phone is the biggest threat to the night view. Turn off the flash, lower your screen brightness, and take only a few photographs. Camera flashes and bright screens make it harder for everyone to see the trees. In practice, the scene is usually more impressive in person than in a photograph.
The length of this ride can vary in practice. Some reports describe only five to ten minutes of firefly viewing, while others describe a fuller and highly memorable cruise. That difference may reflect river conditions, the firefly locations, timing, and how long the boat remains in the best area.
What the $50 price really covers
At $50 per person, this is a reasonably priced full-day outing if you want transport and meals arranged for you. The price includes hotel pickup and drop-off, transportation, river cruises, admission fees, tea, local sweet snacks, and dinner. You do not need to arrange separate transport to the wetlands.
The value is strongest for solo visitors, couples, and families who would otherwise need to organize a private vehicle and river access. The tour also keeps the day simple: you leave Kota Kinabalu in the afternoon, arrive before sunset, eat at the site, and return after the firefly cruise.
The value is weaker if you measure the experience by boat time alone. You may spend four hours or more on the road, while the animal viewing and firefly sections are relatively short. You are paying for the complete outing, not a long expedition deep into the wetland.
There is free cancellation up to 24 hours before the start time. Poor weather or an insufficient number of bookings can also lead to a date change or full refund. Changes made within 24 hours are not accepted for a refund.
Who will enjoy this day trip most

I would choose this outing if you want an easy introduction to Sabah wildlife without arranging several separate bookings. Families often appreciate the simple format, and children tend to respond well to the fireflies even if the monkey sightings are distant.
It also suits first-time visitors to Kota Kinabalu who want one evening outside the city. The guides can add useful context, particularly when they are as engaged as Khatty or Sulani, and the river provides a calm contrast to a busy sightseeing schedule.
You may want another plan if you need a short excursion, dislike long van rides, or expect close animal encounters. The trip requires patience. The road may be bumpy, air-conditioning may not be perfect, and the wildlife may sit high in the trees.
Wear light, comfortable clothing and bring water, insect repellent, and binoculars if you have them. Keep your phone ready for the daylight cruise, but use it discreetly after dark. Most importantly, bring the attitude that you are watching wild animals on their terms.
Should you book the Klias River Cruise?
Book it if the combination of proboscis monkeys and fireflies appeals to you more than speed and comfort. The $50 cost covers a lot, and the chance to see fireflies flickering over a mangrove river is unusual enough to justify the long ride for many people.
Skip it if four hours of road travel sounds unbearable or if you need guaranteed close-up wildlife. The strongest version of this experience includes several monkey groups, an alert guide, a comfortable vehicle, a good dinner, and a bright firefly display. The weaker version still offers an interesting river setting, but with fewer animals and a shorter night cruise.
My advice is simple: book this as a patient nature outing, not as a tightly packed sightseeing tour. Check the weather, carry water and binoculars, and protect the darkness during the firefly ride. With those expectations, it offers a solid and affordable evening in Sabah’s wetlands.
FAQ
Where does the Klias River Cruise and Fireflies Tour depart from?
Pickup is offered from hotels in the Kota Kinabalu city area. Pickup begins at about 1 p.m.
How long does the full tour take?
The experience lasts approximately nine hours, including the road journey, river cruises, dinner, and hotel drop-off.
How long is the drive from Kota Kinabalu to Klias?
The journey takes about two hours each way and covers approximately 132 kilometers.
What animals might I see?
The tour looks for proboscis monkeys, long-tailed macaques, silver langurs, and other wetland wildlife. You might also see birds such as kingfishers or hornbills, along with crocodiles or large lizards.
Is dinner included?
Yes. A Malaysian buffet dinner is included, along with coffee or tea and sweet local snacks.
Are drinks and extra snacks included?
Coffee and tea are included. Bottled water, soft drinks, and additional snacks are not included.
How many people can join the tour?
The activity has a maximum group size of 30 people.
Can I take photographs during the firefly cruise?
You can take photographs, but you should switch off your camera flash and keep bright phone screens to a minimum so the darkness is not disturbed.
What happens if the weather is poor?
The experience requires good weather. If poor weather causes cancellation, you will be offered another date or a full refund.
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