Central Kalimantan: Borneo's river province

Central Kalimantan occupies the southern half of Indonesian Borneo, a province roughly the size of Tunisia but with fewer than three million people. Its interior is a mosaic of peat swamp forest, blackwater rivers and low hills, and its main cities sit on rivers rather than coasts. Palangka Raya, the capital, was built in the 1950s as a planned forest city; downriver, Sampit and Pangkalan Bun are working towns where timber and palm oil meet the sea.

For visitors the province has one clear anchor: Tanjung Puting National Park, the orangutan reserve reached by klotok boat from Kumai near Pangkalan Bun. Everything else — the Kahayan river trips, the Dayak Ngaju longhouses, the lakes of the upper Barito — rewards travellers who are willing to move slowly and accept that schedules in Borneo are suggestions rather than commitments.

Where Central Kalimantan fits in a Borneo trip

Most itineraries treat the province as a three-day detour: fly into Pangkalan Bun, sleep two nights on a boat in Tanjung Puting, and leave. That works, but it sells the province short. Central Kalimantan is the easiest place in Indonesia to see orangutans without a tracking expedition, and it is also one of the few parts of Borneo where you can travel by river for days and still find villages that see almost no foreign visitors.

The province is central in a literal sense as well. From Palangka Raya, roads run north toward the Schwaner mountains and south to the Java Sea, while the Kahayan, Kapuas and Barito rivers carry people and goods across distances that roads still cannot cover reliably. If you are crossing Borneo overland, this is the province where the journey becomes the point.

One practical consequence is that itineraries here should be built around fixed departure points rather than fixed days. Flights to Pangkalan Bun and Palangka Raya are limited, boats leave when they are full, and a single afternoon of rain can turn a two-hour road into a four-hour one. Travellers who accept that rhythm tend to enjoy the province far more than those trying to tick off a list.

Tanjung Puting and the orangutan boats

Tanjung Puting is 415,000 hectares of lowland forest, mostly peat swamp and heath, protecting one of the largest wild orangutan populations in Borneo. Access is from Kumai, a port town twenty minutes from Pangkalan Bun airport. From there, klotok boats — wooden river craft with a covered deck, a simple kitchen and mattresses on the roof — carry visitors up the Sekonyer river to three feeding stations.

The standard trip is two nights, which allows time at Tanjung Harapan, Pondok Tanggui and Camp Leakey. Boats leave early, moor overnight at the stations, and return on the third morning. Prices are negotiated in Kumai and typically cover crew, fuel, meals and park fees; a private boat for two people costs more than a shared one, but the difference buys an itinerary that does not wait for other passengers.

Getting there: airports, roads and river transport

Pangkalan Bun (Iskandar airport, PKN) has daily flights from Jakarta and Surabaya and is the practical gateway for Tanjung Puting. Palangka Raya (Tjilik Riwut, PKY) serves the capital and the Kahayan river, with connections through Jakarta and Balikpapan. Sampit has a smaller airport used mainly by regional carriers.

Roads connect the main towns, but distances are long and conditions vary. The Trans-Kalimantan highway is paved in most sections between Palangka Raya, Sampit and Pangkalan Bun, yet a six-hour drive can stretch to nine in the wet season. River transport remains essential in the interior: speedboats link Palangka Raya with villages along the Kahayan, and cargo boats move goods on the Barito. Bring cash, because ATMs disappear outside the towns.

Car rental is available in both Pangkalan Bun and Palangka Raya, usually with a driver, and costs around IDR 600,000 to 900,000 per day including fuel. Ride-hailing apps work in the towns but not in the interior. If you are heading to Tanjung Puting, note that the last stretch to Kumai is on a decent road, and most boat operators will collect you from your hotel or the airport.

• Pangkalan Bun: best for Tanjung Puting, daily flights from Jakarta
• Palangka Raya: capital, Kahayan river trips, road junction
• Sampit: eastern gateway, ferries and cargo port
• Kuala Kapuas: access to the upper Kapuas lakes

The Kahayan river and Dayak Ngaju country

South of Palangka Raya, the Kahayan river runs through the heartland of the Dayak Ngaju, the province's largest indigenous group. Villages such as Bukit Batu and Tangkiling sit within a day trip of the capital, and the sandung — carved bone houses for the dead — and painted betang longhouses are part of a living culture rather than a museum display.

Further upstream, the river narrows and the forest closes in. Trips to the upper Kahayan require a chartered speedboat and a guide who knows which villages welcome visitors. The annual Tiwah ceremony, a secondary burial that can last for days, is the most important ritual in Ngaju life; it is also a religious event, not a performance, so invitations matter more than cameras.

When to go and what the seasons do

The dry season runs from June to September, when river levels fall and the peat swamp is easier to walk. This is the best window for Tanjung Puting, though it also brings haze in bad years, when fires set to clear land drift across the province and visibility drops.

The wet season, from October to May, raises the rivers and makes boat travel more comfortable but can flood roads and delay flights. Rain usually falls in heavy afternoon bursts rather than all day. If your main goal is orangutans, either season works; if you plan to combine the park with trekking in the Schwaner hills, aim for July or August.

Daylight matters more than temperature here. The equator sits almost directly overhead, so sunrise and sunset arrive within minutes of six o'clock all year, and boats prefer to travel in daylight. Plan arrivals before mid-afternoon, keep a torch in your bag, and do not count on finding an open kitchen after eight in the evening outside the main towns.

Costs, accommodation and local etiquette

Outside the park, accommodation is simple: guesthouses in Pangkalan Bun and Palangka Raya start around IDR 250,000 a night, while mid-range hotels with air conditioning and hot water run to IDR 600,000. In Tanjung Puting you sleep on the boat, and the price of the trip is the price of the room.

Etiquette in Dayak communities follows familiar Indonesian patterns with local variations. Accept food and drink when offered, remove shoes before entering a longhouse, and ask before photographing ceremonies or ancestral objects. Alcohol is limited in many villages, and dress is modest. Tipping guides and boat crews is not mandatory but is appreciated, especially when a trip runs long.

A final word on expectations: this is not Bali. Wi-Fi is slow, hot water is optional, and the nearest good hospital may be a flight away. Travel insurance with medical evacuation cover is worth the extra cost, and anyone with respiratory conditions should check air quality during the fire season before committing to a long stay.

Questions people actually ask

How many days do I need for Tanjung Puting?

Three days and two nights is the standard trip and covers the three feeding stations without rushing. Four nights adds a side channel and a village visit, which suits photographers and anyone who prefers a slower pace.

Can I see orangutans without a tour?

No. Tanjung Puting is a national park with permit requirements, and the feeding stations are reached by boat. Independent travellers still book a klotok and guide in Kumai, which is effectively a tour even if it is arranged on arrival.

Is the haze a problem in the dry season?

In bad fire years, September and October can bring smoke that reduces visibility and affects flights. Conditions change yearly, so check local reports in the weeks before you travel rather than assuming the whole dry season is clear.

What should I bring for the boat trip?

Light long sleeves for dawn and dusk, a torch, insect repellent, cash for park fees and tips, and a dry bag for electronics. The boats have basic toilets but no showers, and phone signal fades within an hour of Kumai.