Exploring Kalimantan: Indonesia’s Wild Heart of Borneo (Orangutans & More!)

What Makes Kalimantan Different From the Rest of Indonesia

Most travellers flying into Indonesia head straight for Bali, Yogyakarta, or Lombok. Kalimantan — Indonesia’s share of the massive island of Borneo — sits off that beaten track in a way that still surprises people in 2026. It isn’t a compact island with a tidy tourist circuit. It’s vast, river-laced, and genuinely wild in ways that Bali simply cannot replicate. One real pain point for travellers right now: since Nusantara, the new national capital, began full government operations in East Kalimantan in 2024 and expanded significantly through 2025–2026, the region around Balikpapan and Samarinda has changed fast. Infrastructure is better, flight connections have multiplied, and parts of East Kalimantan feel noticeably more developed than even two years ago. That’s good for access. The trade-off is that you now need to plan more deliberately to reach the truly remote pockets.

Kalimantan covers four Indonesian provinces: West (Kalimantan Barat), Central (Kalimantan Tengah), South (Kalimantan Selatan), and East (Kalimantan Timur), plus North Kalimantan. Each has a distinct character. South Kalimantan’s capital Banjarmasin is a city of floating markets and waterways. Central Kalimantan’s Palangka Raya is the gateway to dense jungle and peat forest. East Kalimantan hosts the Nusantara capital zone alongside Balikpapan’s oil-town energy. West Kalimantan’s Pontianak sits almost exactly on the equator. This is not one destination — it’s five different Indonesian worlds sharing one enormous landmass.

The Orangutan Encounter: Where to Go and What to Expect

Seeing a wild Bornean orangutan (Pongo pygmaeus) is not guaranteed anywhere. Anyone who tells you otherwise is selling a tourist product, not an experience. The most accessible and well-managed encounter in Indonesian Kalimantan happens at Camp Leakey inside Tanjung Puting National Park in Central Kalimantan. The semi-wild orangutans that visit the feeding platforms there have grown up with ranger contact, which means sightings are highly likely during the twice-daily feedings at 8am and 2pm. But “semi-wild” is the operative term — these animals move through genuinely large forest, and they are not tame.

Standing a few metres from an adult male orangutan as he moves through the canopy above you — his slow, deliberate weight shifting the branches, his amber eyes registering your presence with something that feels uncomfortably like recognition — is unlike any wildlife encounter in Indonesia. The air in Tanjung Puting is thick with humidity and the smell of decomposing leaves and river mud. Macaques chatter overhead. Proboscis monkeys with their distinctive bulbous noses crash through trees along the riverbank as your klotok (wooden river boat) drifts past.

The standard route into Tanjung Puting starts at Pangkalan Bun in Central Kalimantan. From there you hire a klotok — a long, slow wooden boat with a basic upper deck — for a multi-day river journey. The boat is your hotel, your transport, and your viewing platform. Most visitors do 3 to 4 days on the water, stopping at Camp Leakey, Pondok Tanggui, and Pesalat feeding stations along the way. The further upriver you go, the fewer tourists you encounter.

A separate option in West Kalimantan is the Sintang and Ketapang region, where the Centre for Orangutan Protection operates rehabilitation sites. These are less visited but increasingly accessible in 2026 following new road improvements west of Pontianak. For the purists: guided treks into the Wehea Forest Reserve in East Kalimantan offer genuinely wild encounters, no feeding stations, no guarantees, and a much harder logistical path.

Permits and Entry Rules in 2026

Tanjung Puting National Park now requires a SIMAKSI permit booked at least 48 hours in advance through the park authority’s online portal. This changed from the old on-the-spot system in late 2024. The permit costs Rp 150,000 per person per day for international visitors. Your klotok operator can handle this for you, but confirm it explicitly when booking — some smaller operators still try to navigate the old walk-in process and occasionally run into problems.

Deeper Into the Wild: Beyond the Orangutans

Kalimantan’s wildlife goes far beyond the famous red apes. The Bornean pygmy elephant roams the forests of East Kalimantan near the Kinabatangan floodplain (the Malaysian side gets more attention, but the Indonesian populations in the Sebuku-Sembakung area are real and rarely visited). Sun bears, clouded leopards, and pangolins live here too — rarely seen, but their presence shapes the ecosystem in ways that experienced guides will point out through tracks and territorial markings.

Wehea Forest in East Kalimantan is one of the least-visited serious wildlife areas in Indonesia. It’s managed jointly by the local Dayak community and conservation organisations, and the trekking experience here is genuinely remote — think multi-day camps in primary forest, no mobile signal, and nights that sound like the forest is breathing around you. Access requires arranging a community guide from Muara Wahau village.

Birdwatchers should pay attention to the Maliau Basin Conservation Area — technically in the Malaysian state of Sabah, but East Kalimantan’s border zones host many of the same species. The Borneo bristlehead, Storm’s stork, and numerous hornbill species are all present in Kalimantan’s intact forest patches. The Lamandau River Wildlife Reserve in Central Kalimantan is increasingly popular with serious birders following a 2025 wildlife corridor expansion that connected it to Tanjung Puting.

Kalimantan’s River System: The Real Highway

You cannot understand Kalimantan without understanding its rivers. Roads here are often secondary — the Mahakam River in East Kalimantan, the Kahayan in Central, and the Kapuas (the longest river entirely in Indonesia at 1,143 kilometres) in West Kalimantan are the arteries that communities, commerce, and culture move along. In 2026, the Mahakam River corridor has seen some new road upgrades connecting Samarinda to Tenggarong and beyond, but once you’re past Kota Bangun heading upriver, boats remain the primary transport.

Taking a slow boat up the Mahakam from Samarinda toward Melak and beyond is one of the great Indonesian journeys that almost nobody talks about. The boat stops at riverside villages where Dayak communities have lived for generations. You’ll see stilted houses over the water, fishing nets drying in the afternoon heat, and the occasional coal barge moving downstream — a jarring but honest reminder that resource extraction and traditional life coexist awkwardly along these same rivers.

On the Kapuas in West Kalimantan, local passenger boats called ces and bandong connect Pontianak to interior settlements. The journey east toward Putussibau takes the better part of two days by slow boat but passes through landscape that shifts gradually from palm oil plantation fringe to genuine peat swamp forest to higher jungle. The 2026 Trans-Kalimantan highway project has improved the road alternative for parts of this route, but many travellers still prefer the water.

Where to Eat in Kalimantan (The Food Scene, Honestly)

Kalimantan doesn’t have the culinary fame of Java or Sumatra, but that’s a reputation problem, not a food quality problem. Banjarmasin in South Kalimantan is the most interesting food city in Indonesian Borneo. Soto Banjar — a fragrant chicken soup with glass noodles, potato cakes, and a broth seasoned with cinnamon, clove, and star anise — is the dish that defines the city. Find it at Soto Banjar H. Anang on Jalan A. Yani, open from early morning until the pot runs dry, usually by noon.

The floating market at Lok Baintan, about 30 minutes from central Banjarmasin by speedboat, operates from around 5:30am to 8am. The vendors are women in traditional wide-brimmed hats selling from narrow wooden boats — sticky rice cakes wrapped in banana leaf, fresh fruit, grilled fish, and jamu (herbal drinks). It’s genuinely functional, not purely touristy, though it has grown more visited since 2023. Arrive before 6am for the real atmosphere, when the mist is still on the water and the market is in full noise.

In Balikpapan, the city’s oil industry history means there’s an unusually developed restaurant scene for a Kalimantan city. Seafood is excellent here — particularly kepiting soka (soft-shell crab) at the night markets along the waterfront. The Pasar Malam Kebun Sayur area is the most reliable spot for a spread of local food without hunting around.

In the interior, near Tanjung Puting, food is simple: rice, river fish (often grilled whole with sambal), and whatever vegetables came in on the last supply boat. Your klotok cook will prepare all meals on board — the fish they pick up fresh from riverside fishermen each morning, cooked over a wood-fired stove at the back of the boat, served with steamed rice and chilli paste, tastes exactly right after a morning of watching wildlife from the deck.

Getting to Kalimantan in 2026

The most useful entry points depend entirely on where you’re going. Here’s how the 2026 connections look:

• Balikpapan (BPN) — Best for East Kalimantan, Nusantara capital zone, Mahakam River. Direct flights from Jakarta (Garuda, Lion Air, Batik Air), Makassar, Surabaya, and — since the 2025 route expansion — limited international connections from Kuala Lumpur and Singapore. Flight time from Jakarta: approximately 2 hours.



• Banjarmasin (BDJ) — Best for South Kalimantan, Lok Baintan floating market, Meratus Mountains. Frequent daily flights from Jakarta, Surabaya, and Denpasar. Flight time from Jakarta: approximately 1 hour 40 minutes.
• Pangkalan Bun (PKN) — The gateway for Tanjung Puting. Served by Wings Air and Citilink from Surabaya and Jakarta (via Semarang). Seats are limited and often full — book weeks ahead. Flight time from Jakarta: approximately 2 hours 30 minutes direct, longer with stopover.
• Pontianak (PNK) — Best for West Kalimantan and the equator monument. Direct flights from Jakarta, Surabaya, and Kuala Lumpur. Flight time from Jakarta: approximately 1 hour 30 minutes.
• Palangka Raya (PKY) — Central Kalimantan hub. Daily flights from Jakarta and Surabaya. Flight time from Jakarta: approximately 1 hour 50 minutes.

There is no ferry connection from Java or Bali to Kalimantan that makes practical sense for most travellers. A cargo-passenger ferry from Surabaya to Banjarmasin exists (operated by PELNI) but takes around 18 hours. It’s an experience in itself, not an efficient choice.

Getting Around Once You’re There

Within cities like Balikpapan and Banjarmasin, Gojek and Grab both operate normally in 2026 and are the easiest way to get around. Renting a motorcycle is possible in most cities for Rp 80,000–Rp 120,000 per day and gives you flexibility on roads that actually exist.

For river travel, speedboats (ces) are fast and expensive relative to slow boats. A speedboat charter from Pangkalan Bun to the first camp in Tanjung Puting costs around Rp 600,000–Rp 800,000. The klotok boat hire for a 3-day Tanjung Puting journey runs Rp 1,800,000–Rp 3,500,000 per day depending on boat quality, crew, and whether meals are included — which they typically are.

Roads in the interior remain the weak link. The Trans-Kalimantan Highway project has improved some cross-provincial connections, but large stretches of Central and North Kalimantan still involve unpaved logging roads that become impassable after heavy rain. If you’re planning overland travel between provinces, build in genuine contingency time — at least two extra days beyond what you think you need.

Day Trip or Overnight? (And How Long You Actually Need)

Kalimantan is not a day trip destination from anywhere. The scale of the island makes that physically impossible for the meaningful experiences. That said, the question of minimum time is real:

• Tanjung Puting / Orangutan experience: Minimum 3 nights on a klotok. Two nights is possible but you’ll feel rushed and miss the early-morning river light that makes the trip. Four to five nights is the sweet spot for seeing the full range of camps and wildlife.
• Banjarmasin / South Kalimantan: 2 nights is enough to see the floating market, take a river tour, and eat your way through soto Banjar. Add another night if you want to head toward the Meratus Mountains.
• Mahakam River journey: Allow at least 5 days if you want to go beyond Kota Bangun into the lake district and Dayak village territory. A week is better.
• Balikpapan as a base: One night for transit is fine, but the city itself warrants 2 nights if you want to combine it with a day trip to Bukit Soeharto conservation area or the new Nusantara visitor zone.

If you’re combining Kalimantan with Bali or Java in a single trip, be realistic: Kalimantan needs to be its own chapter, with at least 7–10 days allocated. Trying to squeeze it into a 4-day window around another destination leaves you spending most of that time in airports and transit.

2026 Budget Reality: What Kalimantan Costs

Kalimantan is not a cheap backpacker destination in the way that Bali or Yogyakarta can be. Remoteness has a cost. Here’s an honest breakdown:

Accommodation

• Budget (guesthouses, losmen): Rp 150,000–Rp 300,000 per night. Available in all major cities. Quality is basic but functional.
• Mid-range (2–3 star hotels): Rp 400,000–Rp 750,000 per night. Most reliable in Balikpapan and Banjarmasin. Includes air conditioning, hot water, decent Wi-Fi.
• Comfortable (4-star and above): Rp 900,000–Rp 2,000,000 per night. Balikpapan has the best selection, boosted by the Nusantara capital development driving business hotel investment.

Klotok Hire (Tanjung Puting)

• Budget klotok (older boat, basic meals, 2 crew): Rp 1,800,000–Rp 2,200,000 per day for the whole boat (fits 2–4 people).
• Mid-range klotok (better facilities, guide included): Rp 2,500,000–Rp 3,500,000 per day.
• Comfortable/private klotok (newer boat, dedicated naturalist guide, better food): Rp 4,000,000–Rp 6,000,000 per day.

Daily Food Costs

• Budget (warungs, market food): Rp 50,000–Rp 100,000 per day.
• Mid-range (local restaurants, occasional café): Rp 150,000–Rp 300,000 per day.
• Comfortable (hotel dining, seafood restaurants in Balikpapan): Rp 400,000–Rp 700,000 per day.

Guided Treks and Tours

• Half-day guided forest trek: Rp 300,000–Rp 600,000 per person.
• Full-day Wehea Forest trek with community guide: Rp 800,000–Rp 1,500,000 per person.
• Multi-day Mahakam River tour (organised, all-inclusive): Rp 2,500,000–Rp 5,000,000 per person per day.

Practical Tips Before You Go

• Health precautions: Malaria risk exists in rural and forested areas of Kalimantan. Consult a travel health clinic at least 4 weeks before departure. Dengue fever is a real risk in urban areas too — long sleeves and repellent are non-negotiable at dusk.
• Packing for the jungle: Waterproof everything. A dry bag for your electronics is essential on river journeys. Rain here can be sudden and heavy even in the dry season (May to October in most regions). Leech socks are worth the minor expense.
• Cash: ATMs exist in all provincial capitals but become unreliable in smaller towns. Carry substantial cash before heading interior. The recommended buffer is at least Rp 2,000,000 beyond what you expect to spend.



• Mobile coverage: Telkomsel has the widest coverage in remote areas of Kalimantan. Buy a Telkomsel SIM at the airport when you arrive. XL and Indosat drop off quickly outside cities.
• Respecting Dayak communities: Many interior villages welcome visitors but have their own protocols around photography, especially during ceremonial periods. Always ask your guide before photographing people, longhouses, or traditional items. Some communities now charge a small entrance fee (Rp 20,000–Rp 50,000) which goes directly to village funds.
• Wildlife ethics: Do not pay for photos with captive orangutans anywhere. Do not buy wildlife products. Report any illegal wildlife trade activity to the BKSDA (Natural Resources Conservation Agency) through their 2026 online reporting portal.

Frequently Asked Questions

What is the best time of year to visit Kalimantan?

The dry season from May to October gives the most reliable conditions for jungle trekking and river travel. River levels drop in the deep dry months (August–September), which can affect access to some areas by boat but generally improves trail conditions. The wet season brings higher rivers and more dramatic scenery but also significantly more leeches and harder trekking.

Is Kalimantan safe for independent travellers?

Yes, in the cities and along established tourist routes like Tanjung Puting. Petty crime is low compared to Java’s major cities. The main safety considerations are health-related — malaria, dengue, and heat. For deep interior travel on the Mahakam or into border areas, a reputable local guide is strongly recommended, less for safety reasons and more because you simply cannot navigate effectively without one.

Can I see orangutans without staying on a klotok boat?

Technically yes — there are basic guesthouses in Kumai town near Pangkalan Bun, and some visitors do day trips upriver. But the klotok experience is not just transport — it positions you to see wildlife at dawn and dusk when animals are most active. Day-trippers miss the river mornings, which are honestly the best part of the whole journey. The overnight boat is genuinely worth the cost.

How has the Nusantara capital development affected Kalimantan travel in 2026?

East Kalimantan around Balikpapan and Penajam Paser is noticeably more developed, with improved roads, expanded airport capacity, and more hotel options. Positively, this means more flight connections and better infrastructure for travellers using Balikpapan as a base. Negatively, land prices have risen and some peri-urban green areas near Balikpapan face more pressure. The jungle areas further north and west remain largely unchanged.

Do I need a special permit to visit Tanjung Puting National Park?

Yes. Since late 2024, international visitors must obtain a SIMAKSI permit through the park’s official online portal, at least 48 hours before entry. The permit costs Rp 150,000 per person per day. Your klotok operator can arrange this, but confirm explicitly that they have done so before departure. Entering without a valid permit results in a fine and possible removal from the park.

📷 Featured image by Adam Wilson on Unsplash.