Ap Lei Chau (Duck’s Tongue Island) is one of the most densely populated places in the world. It used to be a centre for building junks, but now it’s covered with housing estates, including a huge one called South Horizons. There’s not much to see there, but a walk across the bridge to the island affords good views.
From Aberdeen Promenade you can get a boat across to Ap Lei Chau (adult/child under 12 $1.80/1). Ap Lei Chau is also a destination for bargain hunters drawn to its discount outlet stores.