To the north of Singapore is Peninsula Malaysia, connected to Singapore via two causeways, and separated by the Straits of Johor. Across the Singapore Strait to the south is Batam, a small island of Indonesia, which is accessible by a short one-hour ferry ride.
Beyond the mainland, Singapore's territory includes about 63 smaller islands (Pulau, in Malay) surrounding it. Probably the most well-known of these is Sentosa, south of the mainland: a resort island that is home to golf courses, historical sites, theme parks, an integrated resort, a residential community, hotels, beaches and restaurants. Sentosa is connected to the main island via a causeway, as well as ferry, cable car and train.
For a much more wild experience, check out Singapore’s other well-known island: Pulau Ubin. North east of Singapore, Pulau Ubin is a bird-watcher’s paradise and part of the Ubin-Khatib Important Bird Area which sees a huge variety of native as well as migratory bird species. Pulau Ubin is also home to a rare sight in Singapore: a kampung, or traditional Malay village, and is a popular spot for cycling, camping and walking.
Apart from Sentosa, other notable members of Singapore's southern islands are the Sisters’ Islands, Pulau Hantu and St John’s Island. These largely undeveloped islands are part of a fascinating ecosystem with coral reefs that support endangered species of seahorses, clams and sponges.