How to Go Caving in Mulu National Park

Introduction

If you’ve ever dreamed of exploring vast underground worlds filled with ancient rock formations, shimmering stalactites, and mysterious chambers, Mulu National Park in Sarawak is your gateway. This UNESCO World Heritage Site is home to some of the world’s most spectacular caves, including the Deer, Clearwater, and Lang’s Caves. In this guide, you’ll learn step-by-step how to plan, prepare, and go caving in Mulu National Park — even if you’re a first-timer.

Step 1: Learn About Mulu’s Caves

Before you go, familiarize yourself with the different caves.
Mulu National Park has over 295 km of explored passages, but not all are open to the public. The main caves include:

• Deer Cave – famous for its massive entrance and bat exodus at dusk.
• Lang’s Cave – small but full of delicate formations.
• Clearwater Cave – one of the world’s longest cave systems.
• Wind Cave – known for its cool breeze and scenic chambers.
  For the more adventurous, Adventure Caves like Racer Cave and Lagang Cave offer guided expeditions through tighter passages and underground rivers.

Step 2: Choose the Right Type of Caving Tour

Mulu offers two types of experiences:

• Show Caves (Easy Access) – Ideal for beginners, these caves have well-built walkways, lighting, and guided tours.
• Adventure Caves (Moderate to Challenging) – Suitable for thrill-seekers; you’ll need helmets, headlamps, and a guide.
  Tip: Start with a show cave tour before attempting an adventure cave to build confidence and understanding.

Step 3: Book Your Tours in Advance

All caving tours in Mulu must be booked through Mulu Park HQ or licensed tour operators. Visitor numbers are limited to protect the fragile ecosystem.

• Visit the official website: www.mulupark.com
• Confirm your cave selection, schedule, and guide availability.
  Tip: During peak season (June–August), book at least 2–3 weeks ahead.

Step 4: Plan How to Get There

Mulu National Park is accessible mainly by air.

• By Plane: MASwings flies from Miri, Kuching, and Kota Kinabalu directly to Mulu Airport (MZV).
• By Land and River: Adventurous travelers can take a combination of 4WD and longboat from Miri, though it takes a full day.
  Once you arrive, the park is just 5 minutes from Mulu Airport by van or foot.

Step 5: Pack the Right Gear

While show caves require minimal equipment, adventure caves need proper gear:

• Mandatory: Helmet, headlamp, and sturdy shoes with grip.
• Recommended: Lightweight clothing, gloves, waterproof bag, and insect repellent.
  Tip: You can rent most gear at the park headquarters. Bring an extra flashlight just in case!

Step 6: Follow Safety and Conservation Rules

Caving in Mulu is a privilege — not just an adventure.

• Always follow your guide’s instructions.
• Never touch formations — oils from your skin can stop growth.
• Avoid leaving any trash behind.
• Respect wildlife, including bats and swiftlets.
  Safety Tip: If you’re claustrophobic or have health issues, start with easier caves like Lang’s or Clearwater.

Step 7: Experience the Magic

Once inside, take it slow. The air is cooler, the sound muted, and every chamber tells a story millions of years old. Marvel at the limestone formations, underground rivers, and glimmering stalactites — a true natural wonder of Borneo.
Don’t forget to stay for the bat exodus from Deer Cave at sunset — one of the most mesmerizing sights in Southeast Asia!

FAQs

1. Do I need prior experience to go caving in Mulu?
No. Beginners can easily enjoy guided tours in the show caves, while adventure caves are available for more experienced visitors.

2. Is it safe to go caving in Mulu?
Yes. All tours are guided by trained professionals, and safety equipment is provided or can be rented.

3. What is the best time to visit Mulu National Park?
The park is open year-round, but the dry season (June to September) offers the best conditions for trekking and caving.

4. Can I bring my camera inside the caves?
Yes, but use flash sparingly to avoid disturbing wildlife and other visitors. Waterproof protection is recommended for adventure caves.

Conclusion

Caving in Mulu National Park is one of Malaysia’s most unforgettable adventures — a journey into the heart of nature’s underground masterpiece. With the right preparation, a sense of curiosity, and respect for the environment, anyone can experience the thrill and beauty of these ancient caverns. So gear up, book your tour, and get ready to explore the depths of Borneo’s natural wonder!