Tsing Long Highway (Chinese: 青朗公路; Cantonese Yale: ching1 long5 gung1 lou6; pinyin: Qīnglǎng Gōnglù) is an expressway of Route 3 from on Tsing Yi Island to Yuen Long, in Hong Kong. Ting Kau Bridge and Tai Lam Tunnel are part of the expressway. It connects with Cheung Tsing Highway and Lantau Link at its southern end, and San Tin Highway and Yuen Long Highway at its northern end. Its speed limit at parts south of Tai Lam Tunnel and Tai Lam Tunnel is 80 km/h and parts north of Tai Lam Tunnel is 100 km/h.