The Island Line is one of 10 lines of the MTR, the mass transit system in Hong Kong. It runs from Kennedy Town in the Central and Western District to Chai Wan in the Eastern District. The line first opened in 31 May 1985. It currently travels through 16.3 kilometres (10.1 mi) in 34 minutes along its route, serving 17 stations. The line is indicated by the colour blue on the MTR map.