Gunung Mulu National Park

Located in the heart of Sarawak on the island of Borneo, Gunung Mulu National Park is a UNESCO World Heritage site celebrated for its karst cave systems and rainforest biodiversity. The park contains the Sarawak Chamber (the world’s largest known cave chamber by area) and Deer Cave (one of the world’s largest cave passages). Famous for its dramatic limestone Pinnacles rising above the jungle canopy, Mulu offers an eco-adventure destination for subterranean exploration.

Key Highlights & Experiences

• Deer Cave Bat Exodus: Watch millions of Wrinkle-lipped bats emerge from the entrance of Deer Cave in spiral formations at dusk.

• Clearwater Cave & Wind Cave: Board a longboat along the Melinau River to explore subterranean river systems and limestone rock formations.

• The Pinnacles Trek: Undertake a physically demanding 3-day expedition to view the 45-meter-high razor-sharp limestone karst towers poking through the forest canopy.

• Fast-Flowing River Longboat Trips: Navigate jungle rivers in traditional longboats to visit local Penan settlement craft markets.

Insider Visitor Tips

Pro Tip: Mulu is a remote rainforest park accessible primarily by air. Book your flights, park lodging, and mandatory caving guides well in advance, as park accommodation capacity is strictly regulated.

• What to Pack: High-grade headlamp/flashlight with extra batteries, non-slip caving shoes, lightweight quick-dry trekking clothes, rain gear, dry bag, and personal first-aid kit.

• Accessibility: Raised wooden boardwalks connect headquarters to Deer Cave and Lang Cave (wheelchair accessible with assistance); adventure caving and Pinnacle climbs require high physical fitness.

• Safety & Guidelines: All cave visits outside public boardwalks require a licensed park ranger; stick strictly to designated paths to preserve delicate cave formations.

Location & Getting There

• Address / Landmark: Gunung Mulu National Park, 98000 Miri, Sarawak, Malaysia.

• Transport Options: Accessible via direct domestic flights operated by MASwings (subsidiary of Malaysia Airlines) connecting to Mulu Airport (MZV) from Miri, Kuching, or Kota Kinabalu.

• Nearby Attractions:

  • Headhunter’s Trail (Multi-day trek connecting Mulu to Limbang)

  • Camp 5 Research Station (Base camp for the Pinnacles climb)