A view of the skyway walk linking across the towering Supertrees Grove is pictured in the Garden by the Bay in Singapore on June 28, 2012. Situated at the heart of Singapore's new downtown at Marina Bay, the 101-hectare Gardens by the Bay which include two greenhouses and 220,000 plants from almost every continent was officially opened by Singapore prime minister Lee Hsien Loong for its Bay South garden. AFP PHOTO/ROSLAN RAHMAN