I went one day earlier to organize the itinerary and on the December 8th my 9 blog readers were in Sandakan main town.
We took about 11/2 hours to reach the cave entrance by a 4X4 wheeler.
From the ticket booth to the cave entrance we need to walk of those wooden walkways passing those thick forest.
Upon reaching the main cave entrance we took a short rest at an opening where two rows of long houses were situated.
This was the Simud Hitam cave. Simud hitam produces only black nests.
The Simud Putih, cave that produces white nests, was not accessible due to its distance (four hours to reach the entrance from where we were) and slippery route.
From far the entrance looks more like an opening covered with thick undergrowth as if we will be entering into another hidden world.
Just before stepping into the cave the smell of those rotting bird shit plus bat's guano were very strong.
The cave have those wooden walkways for tourist to walk without dirtying their boots.
The cave was pretty dark and the torchlight we brought were not bright enough.
We were lucky to have those workers inside who provide us with their high powered torchlight.
Inside the cave there were three openings on the roof. The views of the opening were outstanding.
By 4.00pm those bats started to gather and ready to fly out.
At about 5:00pm they were seen flying out of the top most hole like those smoke billowing from a funnel. Non stop for more than 1.5 hours.
At the main entrance the bats split into two groups and flew out at the corner of the cave entrance area while those swiftlet (maximus) flew in the middle.
There was a kind of traffic rules applied to both the birds and the bats when they make a shift change everyday.
Have a look as these pictures: