Vacations to Gunung Mulu National Park, Borneo

The breath-taking beauty of Borneo's Gunung Mulu National Park is hard to comprehend until you arrive in person. Accessed only by plane or an ancient tribal path known as 'The Headhunters’ Trail, the adventure becomes clear to see even before you arrive. With such remarkable geological importance and diverse fauna and flora, it was declared a UNESCO World Heritage Area in 2000 - Malaysia's first such area, and is the most the most studied tropical karst area in the world.

The National Park home to around 300 kilmeters of explored caves which first emerged from coral-rich lagoons 20 million years ago. There are four so-called ‘show caves’ that are the most visited – Deer, Lang, Clearwater and Wind. They're spot lit in places for visitors to appreciate their size and beauty, and plank walkways have been built in parts for deeper access inside. The winding passages of Clearwater Cave has a subterranean river, some of which you can experience by boat. The mysterious noise you’ll hear in Deer Cave is the three million strong cloud of Wrinkle Lipped bats. Brave cavers can gleefully explore deeper inside and even have an unforgettable overnight cave camp. The Benarat Cavern, Asia's third largest cave at 50 kilmeters long, and the Clearwater Cave, accessed via a four hour trek or longboat, offer ample opportunity for adventure. Once you're done exploring for the day, you can cool off with a dip in the river and watch the swarms of butterflies. At night, watch as vast colonies of bats erupt suddenly from their day-time cave dwellings, darting for food between the rich array of fauna and flora that grow in this unique rainforest.

The Mulu Skywalk is a 480-meter walkway that’s suspended 20 meters above the forest floor. It twists through the tree tops presenting adventurers with aerial views of the river below and the majestic limestone cliffs above. But if heights aren’t your thing, you don’t have to miss out on the adventures of Mulu. Following the easy Botanical Trail through the rainforest will take you to some of Mulu’s beauty spots, minus the fear-factor.

Highlights

  • Adventurers paradise with peaks to scale and various treks

  • Vast cave network to be explored

  • Jungle treks and a canopy walkway

Eline
Travel Designer
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I have lived in Vietnam and travelled extensively in Cambodia, Laos, Malaysia, Myanmar and the Philippines.

Gunung Mulu National Park trip ideas

Places to stay in Gunung Mulu National Park

Map of Gunung Mulu National Park

When to go to Gunung Mulu National Park

Due to its tropical setting, rainfall is high in Gunung Mulu with around 280 days of rain per year. Visiting between June to September is generally drier with a better chance of spotting wildlife, but weather can be unpredictable whenever you visit so check the forecast in advance.

January

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This is the wettest month of the year, reaching up to 26 inches of rainfall.  

February

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The heavy rain has usually eased off by now and temperatures reach 30°C.  

March

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You might experience occasional showers, but it's a great time to get into the jungle and explore.  

April

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Temperatures continue to increase with overnight temperatures in the mid 20s, and high humidity. Explore the rainforest but leave your waterproofs at home.  

May

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Expect average daily highs of 32°C and a welcome drop in humidity.  

June

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Temperatures remain consistent and it's a great time to visit the nearby orangutan sanctuaries.  

July

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Rainfall is at its lowest in July so make the most of the sun and head for the beaches.  

August

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This is a peak time for visitors thanks to the great weather.  

September

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The rainy season returns, but temperatures remain around 30°C.  

October

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Rainy periods are more prolonged with heavier showers.  

November

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Rainy season is at a peak in November with the heaviest showers. Prepare to get wet wherever you go!  

December

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The rains will continue and the wildlife will disappear, but you can benefit from fewer visitors and better prices.