I had to book for 2 adults even though we were 1 adult and 1 child. There should have been an option for 1 adult + 1 child so long as 2 to join. Due to that, I felt ripped off for the prices paid SGD40.55 x 2 considering its only RM10 for adult and RM5 for child to enter we saw total of 6 orang utans incl baby clinging to its mummy. book this purely for convenience of having a hotel pickup/ drop off. the guide ensured we r aware when there's sightings of orang utans nearby but I came here on my own before, u could also just follow those guided groups along when there's ou sightings.