Mulu is known for many things. For one, there is the Mulu Caves, a series of caves and caverns with the largest called the Sarawak Chamber, which is large enough to park eight 747 Jumbo jets! As the sun sets, thousands of bats fly out of the caves, creating a dark and mysterious atmosphere as these nocturnal creatures cloud the sky before dispersing in their hunt for a night meal.

There is also the 'Pinnacles', which has become synonymous with the park. Those huge protruding daggers jut out from the rugged limestone hills and ranges of Mount Api like long, sharp fingers reaching out to heaven. Over the course of millions of years, heavy rain has eroded the limestone rocks, carving them into their razor-sharp form. Such a wonder nature offers to those adventurous and fit enough to hike the rough trails.

And then there is Mount Mulu itself, with its 1,500 species of flowering plants including 170 species of orchids, 67 species of mammals, 262 species of birds, and 281 species of butterflies. From the summit, you will be treated with the breathtaking view of the park's surrounding. The journey normally takes about four days through the moderate jungle terrain.