Transport within Singapore is mainly land-based. Many parts of Singapore, including certain islands such as Sentosa and Jurong Island are accessible by road. The other major form of transport within Singapore is rail: the Mass Rapid Transit which runs the length and width of Singapore, and the Light Rail Transit which runs within a few neighbourhoods. The main island of Singapore is connected to the other islands by ferry boat services. Singapore also has a great deal of links to the rest of the world. There are two bridges which link Singapore to Malaysia – the Causeway, and the Second Link. The Singapore Changi Airport is a major aviation hub in Asia, and Singapore is a major transshipment port. Taxis are comfortable and especially handy if you want to go to places not accessible by the bus or MRT. Cabs here are metered, but there may be surcharges depending on when, where and which company’s taxi you board. To get a rough idea of the final fare, check with the driver on the surcharges and ask for a receipt at the end of the trip. You can hail a taxi by the roadside at most places, or by queuing for one at taxi stands found at most shopping malls, hotels and tourist attractions.