Jungles of Borneo

Borneo: The 140-Million-Year-Old Rainforest and What Remains of It

Borneo’s interior rainforest is estimated to be around 140 million years old – predating the Amazon, predating most of the world’s tropical forests, and containing the evolutionary residue of an island that has never been connected to a continental landmass during the period when mammals diversified. The island is the third largest in the world, divided between Malaysia (Sabah and Sarawak), Indonesia (Kalimantan), and Brunei. The species density that results from that isolation and age is extraordinary: pygmy elephants, proboscis monkeys, sun bears, eight species of hornbill, and the Bornean orangutan, now critically endangered and confined mostly to Sabah and Sarawak.

The honest note to lead with: the Kinabatangan River wildlife corridor is shrinking because of palm oil plantations pressing in from both sides. Book with operators who fund corridor restoration – a handful in Sukau donate a portion of fees to the Lower Kinabatangan Wildlife Sanctuary. It costs the same and the difference matters.

Where to Go

Danum Valley Conservation Area in Sabah is the standout for serious wildlife. It covers 440 square kilometres of primary lowland dipterocarp forest, almost entirely without tourist infrastructure by design – the Borneo Rainforest Lodge limits visitors, which keeps the experience genuinely wild. Two nights is the minimum worth doing; three is better. Expect to pay around MYR 700 to 900 per night, which includes guided night walks and morning river cruises. Orangutans are not guaranteed here but the forest itself is the rarest thing you can access in Malaysian Borneo: undisturbed primary growth, not secondary forest that regrew after logging.

Kinabatangan River is more accessible and more productive for wildlife sightings per hour invested. The river corridor is narrow enough that animals must cross it, so proboscis monkeys, long-tailed macaques, crocodiles, and sometimes elephants come to the water from both sides. The small town of Sukau is the base; a two-night riverboat package costs roughly MYR 400 to 600 per person with meals. Book with an operator committed to the wildlife corridor.

Bako National Park near Kuching in Sarawak is 37 kilometres from the city but feels remote, reached by a 20-minute boat that sometimes turns back in rough weather. Proboscis monkeys are reliable at dusk near park headquarters. Day trips work; staying overnight in the park chalets (book months ahead) gives you dawn forest access with few other visitors.

Food

In Kota Kinabalu, the Filipino Market Night Stalls near Sinsuran are the best reason to stay near the seafront: grilled fish and seafood by weight, around MYR 35 to 60 per kilo, plastic tables, cold Milo. The laksa at Kedai Makanan Ya Sabah on Gaya Street is the proper morning bowl in KK: spicy coconut broth with rice vermicelli, under MYR 10. In Kuching, Sarawak laksa at Choon Hui Cafe – thinner and more sour than the KK version, built on a shrimp paste base – is the dish local food writers consistently cite as the one dish you should eat in Sarawak.

Where to Stay

Beyond the Borneo Rainforest Lodge, budget travellers do well at Sukau Greenview B&B on the Kinabatangan (around MYR 150 per night with meals). Lucy’s Homestay near the Jesselton Point ferry terminal in Kota Kinabalu has been running for 25 years and knows the jungle itinerary logistics better than most hotels.

Practical Notes

Book Danum Valley three to six months ahead for the lodge. Malaria prophylaxis is generally not recommended for standard tourist routes but confirm with a travel clinic. Leeches are present in forest after rain: long socks worn over trouser legs outperform repellent for actual prevention. The best window for orangutan sightings is March through May and September through November, when the fruit crop is lower and orangutans descend from the canopy to ground level.