After breakfast it is time to explore the famous Niah Caves. The tour starts with a visit of the Niah Museum (closed on Mondays) to learn about the archaeological importance of the Niah Caves. From here a 3 km plank-walk will lead you to the Traders Cave, which used to be a thriving market some 60-70 years ago, where edible birds' nests which had been collected in the caves were barter-traded for food and other goods. Nowadays the collecting of the highly sought-after swiftlet nests continues, but is a government-controlled activity. Having passed through Traders Cave you will reach the Niah Great Cave with the famous excavation sites, where a 40.000 year old human skull was found. Deeper inside this cave you will see evidence of the on-going collecting of edible birds' nests as well as collecting of bats guano for fertilizer. If you wish you can exit the Great Cave through the east entrance, climbing up several stairs and through a pitch-black tunnel to get to the Painted Cave with its hematite cave paintings. (Please note that the cave paintings in the Painted Cave are protected behind a tall fence and can only be seen from a distance.)
Return to the Park headquarters for lunch before we proceed to Similajau National Park. Check-in & dinner at Similajau National Park.
After dinner, we will embark on a night cruise by boat on the navigable part of the Likau river to spot crocodiles and some nocturnal animals in the mangrove forest.
Overnight at Similajau National Park, Chalet (simple accommodation).