It is better to visit River Safari http://www.wrs.com.sg on weekdays as the crowds during peak periods is madness. Nothing much to see except for some river creatures. As for the famous pandas Kai Kai & Jia Jia, they were sleeping when we went. We queued for at least half an hour but left within 10 minutes. The same for their river ride, you queued for half an hour to ride on the boat for just 10 minutes.