The Kapuas: a river that runs for 1,143 kilometres

The Kapuas is the longest river in Indonesia, running for about 1,143 kilometres from the mountains of Kapuas Hulu, near the Malaysian border, to the sea at Pontianak. It drains a basin the size of a small country, crossing peat swamp, logged forest, farmland and the outskirts of the city, and it is still the main road for much of the interior.

Travelling on it is the best way to understand West Kalimantan. The river carries timber, coal, palm oil, fish, building materials and people, and the towns along it are strung out along the banks rather than around a square. The boats are slow and crowded and occasionally uncomfortable, and there is no better way to see how the province works.

The river and its towns

From Pontianak, the Kapuas runs east through Sanggau and Sintang towards Putussibau, with settlements at the river junctions and between them long stretches of forest and swamp. The towns are small and functional: a market, a mosque or a church, a jetty, a row of shops, and a road that runs along the water.

The river changes as you go upstream. Near the coast it is wide, brown and tidal, lined with nipah palm and floating houses. Further up it narrows, the current quickens, and the forest comes closer. In the upper reaches, near Putussibau, the water is clearer and the hills begin, and the river is the only way to reach many villages.

Boats and how to travel

There are two ways to travel: the express boats, which are fast, enclosed and uncomfortable, and the slow boats, which take much longer and are far more interesting. The express from Pontianak to Sintang takes most of a day; the slow boat takes a night or more, depending on the water. Both leave from the river jetties in the city.

Buy your ticket at the jetty, arrive early, and bring food, water and something to sit on. The express boats are crowded and the air conditioning is either absent or arctic; the slow boats have decks where you can watch the forest go by. If you are going further than Sintang, ask about connections, because the schedules are not always coordinated.

The other option is a chartered speedboat, which is expensive but flexible, and the only way to reach some of the villages and the national parks. Agree the price and the fuel before you leave, and check the weather: the river is safe in the dry season and can be dangerous in a storm.

The river economy

The Kapuas is an economic artery. Coal and timber barges move downstream, palm oil and rubber go out through the ports, and food, fuel and consumer goods go up. Fishing is still important, both for local consumption and for the aquarium trade, and the river feeds the farms and the towns along its banks.

That intensity has a cost. The water is polluted near the cities, the forests of the basin have been heavily logged, and the peat swamps that regulate the flow have been drained in places. The river still works, and it still supports an extraordinary amount of life, but it is a working river rather than a pristine one.

When to go and what to see

The dry season, roughly May to September, is the easiest time to travel: the water is lower, the current is manageable and the roads are passable. The wet season brings floods, which are impressive but disruptive, and the boats can be cancelled. Either way, allow more time than you think you need.

The obvious stops are Sintang, with its market and its churches, and Putussibau, the gateway to Danau Sentarum and the upper Kapuas. Pontianak, at the mouth, has the old town, the equator monument and the best food on the river. The rest is the river itself, which is the point.

• Take the slow boat at least once.
• Buy tickets at the jetty and arrive early.
• Bring food, water and a cushion for the express.
• May to September for lower water and fewer delays.
• Ask about connections before you commit to a through trip.

Practical notes for river travel

Tickets are sold at the jetty on the day, and the classes are worth understanding: the express boats are fast and cramped, the slow boats have decks and cabins and take much longer, and the chartered speedboats are the most expensive. For the long haul to Putussibau, the slow boat is the more comfortable choice if you have the time.

Take food and water, a cushion or a mat, and something to read. The express boats stop rarely and the toilets are basic. Keep your bags with you rather than in the hold, and keep your passport and cash in a money belt. At the stops, watch the time: the boats do not wait long.

The river is generally safe, but accidents happen, especially at night and in bad weather. Avoid travelling after dark if you can, and do not take a boat that looks overloaded. If you are going to the parks, tell someone your itinerary and check in when you arrive; the interior has no reliable phone signal.

Questions people actually ask

How long does it take to travel the Kapuas river?

The express boat from Pontianak to Sintang takes most of a day; the slow boat takes a night or more. The full river, from Pontianak to Putussibau, takes several days with connections, and more if you stop. Chartered speedboats are faster but expensive.

Is the Kapuas safe to travel?

Yes, in ordinary conditions. The express boats are licensed and busy, and the main routes are well used. Storms can make the river dangerous, and the wet season brings floods and cancellations. Keep your valuables close, and avoid travelling at night if you can.