
Sentosa Island, known mononymously as Sentosa, is an island located off the southern coast of Singapore's main island. The island is separated from the main island of Singapore by a channel of water, the Keppel Harbour, and is adjacent to Pulau Brani, a smaller island wedged between Sentosa and the main island.
Imbiah Lookout is Singapore's biggest cluster of attractions, it is located in Sentosa Island. The area contains 11 attractions.

Canopy Flyer is a roller coaster attraction located at Universal Studios Singapore. It is a family-friendly outdoor attraction. The ride travels above most of the Lost World themed area, but also gives riders a bird's-eye view of the park.

The Capella Resort, Singapore is a luxury resort situated in 30 acres (12 ha) of grounds and gardens located on Sentosa Island, Singapore. It has 112 manors, suites and guestrooms designed by Norman Foster. It was developed by Pontiac Land and officially opened in March 2009. Capella Singapore's long-stay accommodation arm, The Club at Capella Singapore comprises 81 serviced apartments, penthouses and manors.

Sentosa Development Corporation is a statutory board in Singapore, under the purview of the Ministry of Trade and Industry.
The Hitachi small-type monorail is a straddle-type monorail built by Hitachi Ltd. for the use on the Sentosa Express. These trains are part of Hitachi line of ALWEG based monorail. The trains were part of a project to replace Sentosa's previous aging monorail system. The trains are fully air-conditioned.

The Sentosa Express is a monorail line connecting Sentosa island to HarbourFront on the Singapore mainland across the waters.

Fort Siloso is the sole restored coastal gun battery from the 12 such batteries which made up "Fortress Singapore" at the start of World War II. The fort is situated on Pulau Blakang Mati, an island south of mainland Singapore. The fort is now a military museum open to the public. The Surrender Chambers in Fort Siloso reopened in June 2017 with a refreshed exhibition and free admission.
Sentosa Fountain Gardens was a garden promenade attraction on the western part of Sentosa Island located in Singapore, which opened in 1989. It was located in the Imbiah Lookout zone of the island. The gardens and other features were demolished in 2007 for construction of the new Resorts World Sentosa, a large integrated style resort with new entertainment venues.
Imbiah Lookout is Singapore's biggest cluster of attractions, it is located in Sentosa Island. The area contains 11 attractions.

Skyline Luge Sentosa is a luge located in Sentosa, Singapore. The attraction opened on 26 August 2005. The luge, situated on the Imbiah Lookout cluster opposite the Tiger Sky Tower, has four tracks. The tracks are called the Jungle Trail, the Dragon Trail, the Kupu Kupu Trail and the Expedition Trail (658 meters. The Jungle Trail is the oldest, followed by the Dragon Trail and the Kupu Kupu and Expedition trails. The luge is a self-driving car system in which riders control the speed by pushing a pair of handlebars back and forth. The luge ride goes downhill, relying on gravitational pull to move. After the ride, the 315 meter long Skyride, using chairlifts, brings riders, luge carts, and the helmets back to the starting point. The Skyride is similar to a ski lift. There are two Skyride systems available for use.

Magical Sentosa was a multimedia nighttime show hosted at the Sentosa Musical Fountain on the resort island of Sentosa, Singapore. The multimedia show is the last musical to be staged on the fountain itself. The musical ran for less than five years before being eventually discontinued in 2007 and replaced by Songs of the Sea.

The Merlion is the national symbol of the city-state of Singapore. It is depicted as a mythical creature with a lion's head and the body of a fish. Being of prominent symbolic nature to Singapore and Singaporeans in general, it is widely used to represent both the country and its people in sports teams, advertising, branding, tourism and as a national personification and patriotic emblem of the Singaporean nation.

Resorts World Sentosa is an integrated resort on the island of Sentosa, off the southern coast of Singapore. The key attractions include one of Singapore's two casinos, a Universal Studios theme park, Adventure Cove Water Park, and S.E.A. Aquarium, which includes the world's second largest oceanarium.
Sentosa Cove is a residential enclave in the eastern part of Sentosa island in Singapore, which is planned to include about 2,500 units when fully developed. It is largely made up of reclaimed land. The master developer of the site was Sentosa Cove Pte. Ltd., a subsidiary of Sentosa Development Corporation, which purchased the site from the Singapore Land Authority for a sum of about S$800 million.
The Sentosa Ferry Terminal, was a cruise terminal located on the island of Sentosa, Singapore. The cruise center was the first of its kind in the region. Built by the Sentosa Development Corporation in 1972, the terminal was the first of nine planned structures to be built on Sentosa. The terminal can cater maritime traffic to various parts of Indonesia, Batam, Karimun Jawa, Tanjungbalai, Penang and Malacca. The terminal building was completed in 1987, with the now-defunct Ferry Terminal Monorail Station located within the building. After the station closed in March 2005, the station interior was kept intact, and the old monorail tracks were covered up and left forgotten. With the then-future Resorts World Sentosa about to occupy the site in 2007, the structure was subsequently demolished to make way for its new occupant.

The Sentosa Monorail was a monorail system which served as the main means of transportation on the island of Sentosa in Singapore, and has been replaced by the new monorail system, the Sentosa Express. The system was constructed at a cost of S$14 million by Von Roll of Switzerland, who also built the Singapore Cable Car.
Sentosa Musical Fountain, also known as the Magical Fountain of Sentosa, or as the Musical Fountain by locals, was a former musical fountain water feature and entertainment venue on Sentosa Island in Singapore. It was located on a now-demolished portion of the Imbiah Lookout entertainment zone on the island. The Musical Fountain was officially opened on 11 June 1982, and ceased operations 25 years later on 26 March 2007, and was demolished that same year. The venue arena could accommodate more than 5000 people. It hosted five different shows through the 25 years it had been in operation, including the famous Magical Sentosa show which ran during the last 5 years of the fountain's operations.

The Singapore Cable Car is a gondola lift providing an aerial link from Mount Faber on the main island of Singapore to the resort island of Sentosa across the Keppel Harbour. Opened on 15 February 1974, it was the first aerial ropeway system in the world to span a harbour. However, it is not the first aerial ropeway system to span the sea. For instance, Awashima Kaijō Ropeway in Japan, built in 1964, goes over a short strait to an island. Although referred to by its operators as a cable car, the listed system is in fact a monocable gondola lift and not an aerial tramway. In 2020, a round-trip ticket cost SGD 35 for adults and SGD 25 for children.

Songs of the Sea was a multimedia show located at Siloso Beach on Sentosa Island, Singapore. Designed by ECA2 founder, Yves Pépin, Songs of the Sea started its operations on 26 March 2007, a day after the Sentosa Musical Fountain ceased operations. The fountain is a $30 million investment by Sentosa to enhance its entertainment product offerings and to attract more tourists. It was the world's only permanent show set in the sea – with pyrotechnics displays, water jets that could shoot up to 40 meters, laser show, flame bursts, a live 7-person cast, and an open-air viewing gallery which can accommodate 3,000 visitors. Songs of the Sea had its final show on 4 May 2014, and was closed to make way for a brand new multi-sensory production titled Wings of Time, which was launched on 17 June that year.

The Tiger Sky Tower, previously known as Carlsberg Sky Tower, was the highest observation tower in Singapore. It is located in the Imbiah Lookout zone in the centre of Sentosa Island. It was opened on 7 February 2004 and closed on 28 December 2018.

Underwater World, also known as Underwater World Singapore Pte Ltd, was a former oceanarium located on the offshore Singaporean island of Sentosa.