Initially, the park was a closed conservation zone for the spectacular Rafflesia, the largest flower in the world that can grow up to one metre in diameter. However, after extensive environmental impact studies, the National Parks Department decided that Gunung Gading is a treasure that should be shared with the public.

It was therefore opened to the public in 1994. However, Gunung Gading National Park remains closely watched by the National Parks Department to ensure that visitors will get the best opportunities to view the flowering Rafflesia without causing any damage to the young buds and other flora in the surrounding area. A plank walk has been built close to where the Rafflesia is commonly found, making viewing possible when the plant is in bloom.

Jungle trails lead to streams, cascading waterfalls and the mountains, with one path taking trekkers to the summit of Gunung Gading (906m). The rugged mountains within the Park provide a scenic backdrop to the nearby town of Lundu, and the beaches at Pandan and Siar.