and Siu Hong. The routes were created as a result of the Light Rail's transition into becoming a short-distance feeder service for West Rail, and upon their creation the service frequencies of routes 614 and 615 were accordingly halved, such that the overall service levels at stops between Siu Hong and Tuen Mun Ferry Pier remained the same. Route 705 runs an anticlockwise service around the Tin Shui Wai area via Tin Yat. The route was created on 22 August 2004 and replaced route 701, which ran a shorter anticlockwise service via Chestwood between 16 December 2003 and 21 August 2004. Route 706 runs a clockwise service around the Tin Shui Wai area and serves the same stops as route 705. The route was created on 9 April 2004 to enhance short-distance feeder service in Tin Shui Wai. Route 751 runs between Tin Yat and Yau Oi. It was created on 7 December 2003 and replaced route 720, which ran between Tin Wing and Yau Oi from 1994 to 2003. (Route 720 was created in 1994 and replaced route 722, which ran between Tin Wing and Siu Hong from 1993 to 1994, as well as route 612, which ran between Yuen Long and Yau Oi from 1988 to 1994.) Route 751P operates as a short-distance variant of route 751 between Tin Yat and Tin Shui Wai, and runs only during peak hours on school days. It was created in August 2004. Route 761P runs between Tin Yat and Yuen Long via Locwood. It was originally a short-distance variant of route 761, but then replaced route 761 when it was permanently discontinued on 8 October 2006. Route 761 ran between Tin Wing and Yuen Long via Wetland Park from 7 December 2003 to 7 October 2006, and was a replacement of route 721, which ran between Tin Wing and Yuen Long via Chestwood from 1993 to 2003. After the discontinuation of route 761, special services of route 761P to Tin Wing continued to operate at 30-minute intervals from 10:00 to 15:00 daily until 23 August 2010. The present MTR Bus route 506 retains the number of the Light Rail route that it replaced. Light Rail route 506 ran between Tuen Mun Ferry Pier and Yau Oi via Kin On; it was created in 1988 and was extended from On Ting to Yau Oi in 1992. On 14 July 2002, due to