They were part of a sound and light show at the Gardens by the BayThe 101-hectare park features a grove of supertree structures with real vegetation creeping up the lit sculpturesThe supertrees incorporate environmental technologies such as solar power, rainwater collection and a conduit for air from the cooling systemsA walkway allows tourists to journey through the tree-topsMarina Bay Sands resort is seen in backgroundOne of the giant trees contains a restaurant in its canopy