Mojin: The Worm Valley

Hu Ba Yi, Wang Fat Zi, Shirley Yang and others pass through the secret underground waterway of the ancient Longfeng Mountains to find the Tomb of Emperor Xian in Yunnan province. The tomb is located on a dangerous island full of ancient monsters, including an ancient undying worm. They also face other dangers in the form of peculiar fishes and dead humans enslaved by toxic worms living inside their bodies. Going deep into the jungle, they are constantly being challenged by monsters.
(Source: Wikipedia)
~~ Adapted from the 3rd volume in the novel series "Candle in the Tomb" (鬼吹灯) by Zhang Mu Ye (天下霸唱).