two big and three small loops serving most of the public housing estates in northern Tuen Mun. Three branches: one to On Ting Estate in the southeast, one to the Tuen Mun Ferry Pier in the southwest, and another northern branch all the way into the town of Yuen Long along Castle Peak Road. MTR Tuen Ma Line With the KCR West Rail opened in December 2003 (which had become part of the Tuen Ma line on 27 June 2021), the Light Rail have also taken the role of feeder services. Tuen Mun and Wu Kai Sha stations are the termini of Tuen Ma Line. The service had been enhanced from using 7-car trains to 8-car to cope with the increasing population in Tuen Mun, Tin Shui Wai, and Yuen Long. Since becoming part of Tuen Ma line, passengers taking the railway line can reach the Ma On Shan, Kai Tak, Tai Wai and Diamond Hill areas directly and conveniently. Road Tuen Mun is well-connected to different districts in Hong Kong and the border with the Mainland, China. Residents can take 962 series, 960, 961 bus to the Hong Kong Island side. Meanwhile, LWB provides service between Tuen Mun and Hong Kong International Airport. KMB, one of the bus companies in HK, having route 59M, 59X, 60M, 60X, 53, 263, 260X, 259D, 62X and more to bring passenger from Tuen Mun to various destinations in New Territories and Kowloon. Passengers can take A33, A33X, A33P, E33, E33P, N30, NA33, and N30P to the airport at day time, afternoon and mid-night. The Hong Kong–Shenzhen Western Corridor, Cross Border Shuttle Services to Shekou is operated by Citybus on route B3, which departs from Tuen Mun Ferry Pier and B3X which departs from Tuen Mun Town Centre, a five minutes walk from MTR Tuen Mun station. Residents can also take Green Minibus service 44, 44A, 44B to the Lok Ma Chau Border, and Lo Wu Border from Tuen Mun. MTR Bus is available within the Tuen Mun District. Routes can reach most of the residential areas in Tuen Mun. K52, K51, 506, and K53 serving from the early morning to late night. Passenger transferring to/from Light Rail (LRT) and West Rail line could get a transit discount by using Octopus card to pay. Ferry Private ferries is also available in sporadic times in the public pier, 15 minutes walk from the Tuen Mun