Millions of bat swarms out out of the Deer Cave in order to hunt for insects at dusk, usually about 5pm to 7pm. On some occasions they have been known to fly out at 4pm, usually on darker, cloudy days.
The Great Cave of Niah is enormous by any measure. The floor area of the cave has been calculated at almost 10 hectares and in places the cave roof rises a majestic 75 meters above the rubble-strewn floor. It has been the site of around 40,000 years of human occupation.
Gunung Mulu National Park is one of Nature's most spectacular achievements and the 'jewel in the crown' of Sarawak's expanding network of national parks and is a UNESCO World Heritage Site.
Ironically located at a depression of the hills and surrounded by higher terrain, Hilltop Garden is a small residential community that was built in the mid 1980s just off Riam Road.