The fully elevated 2.1-kilometre (1.3-mile; per direction) two-way line (4.3-km total track length) opened on 15 January 2007.

The monorail system, privately owned by Sentosa Development Corporation and operated by Singapore Mass Rapid Transit, can move up to 4,000 passengers per hour per direction.

Unlike its predecessor which ran in a loop around the island, the Sentosa Express crosses the sea to interchange with the North East Line of the MRT on the mainland, with three stations on Sentosa itself, making up a total of four stations.

A spokesman from the Sentosa Leisure Group said that the station had been built before plans for the integrated resort were finalised.

Like Changi Airport and Stevens MRT stations, ticketing, faregates and platforms are all on the same level.

This is the only station on the Sentosa Express that is air-conditioned and utilises full-height platform screen doors.

The station was originally known as Waterfront and operated for nearly a year before closing down in January 2008, to make way for the construction of Resorts World Sentosa.

In November 2023, a new platform was opened for alighting passengers, employing a Spanish solution in the station.

[14][15] At the street level, there are beaches, shops, sea sports, pubs, cafés, and restaurants.

It is connected to the Beach Station Transfer Hub for transfers to Beach Trams, SBS Transit Bus Service 123, Sentosa Golf Club Shuttle, Shuttle to HarborFront as well as Sentosa Internal Bus Services A & B.

The Sentosa Express is the first system to use Hitachi Rail's small-type, straddle–beam monorail with a capacity of about 184[4] passengers per train.

This will reduce the travel times for passengers, and allow more trains to run together for greater capacity.

With the implementation of the driverless CBTC system, all train cab windows are opened except during manual operation.