MacRitchie Reservoir

One of Singapore's beautiful Nature Reserves, and well worth a visit.
The Tree Top walk is a highlight, as is a walk on the board walks around the reservoir or on the tracks through the jungle.
There are monkeys (keep your distance and definitely keep any food out of sight), and heaps of insect life to see.
Find more information on the Singapore National Parks Website
https://www.nparks.gov.sg/gardens-parks-and-nature/parks-and-nature-reserves/macritchie-reservoir-park