公園內設有中央部份係城門谷運動場，將公園分開南園同北園。運動場擁有全天候8線400米跑道、11人草地足球埸同收費停車場，喺1998年8月啟用，由康樂及文化事務署管理。
The central part of the park is the Shing Mun Valley Sports Ground, which separates the park into the south and north parks. The sports ground, which has an all-weather 8-lane 400-metre track, an 11-a-side lawn soccer and a paid car park, was opened in August 1998 and is managed by the Leisure and Cultural Services Department.