Discovered this gem while killing time before a flight. Tsing Yi Nature Park is right next to the Airport Express line but feels like you're in a different world. Take the MTR to Tsing Yi station and walk 5 minutes to the entrance. The main trail loops are 3.3–6.4 km and take about 1.5-2 hours depending on which route you choose. Perfect if you want nature but don't have time for the outer islands.