"Kai Kai", a panda from China, yawns in its enclosure during a media preview at the River Safari in Singapore on October 29, 2012. Two giant pandas, aged four and five-years old and on loan from China for 10 years to the Wildlife Reserve Singapore (WRS) - the parent company to the city's Jurong Bird Park, Night Safari and Singapore Zoo, are being housed in a custom-built 1,500 square metre (16,145 square foot) enclosure costing 6.9 million USD within WRS's newest attraction, the River Safari, will open to the public for a special preview on November 29. AFP PHOTO / ROSLAN RAHMAN