The system was constructed at a cost of S$14 million by Von Roll of Switzerland, who also built the Singapore Cable Car.

It operated several 16-car, non-air conditioned trains in a unidirectional anti-clockwise single loop through seven stations located around the western half of the island.

This resulted in the bus service to these locations being terminated, and the monorail thus became the main mode of transport around the island.

[6] Due to the rapid modernisation of the island, maintenance problems, increasing costs, and declining popularity as visitors started complaining that the ride was slow and uncomfortable,[3] the Sentosa Monorail ceased operations on 16 March 2005 to make way for the new four-station Sentosa Express monorail.

[7] Parts of the track and some of the monorail stations were repurposed for other uses,[3] such as the "Surrender Chamber" at Fort Siloso, a restaurant being developed at the Central Beach, and the SDC Office was rebuilt and converted into a bar.