Very well organized zoo as you expected Singapore to be, animals are well taken care of, everything is clean. There is tram ride (also stroller friendly) within the zoo if you're tired walking around. Lots of tree shades also, so it's not very hot (bringing umbrella is a must though), vending machines are spread anywhere. Many restaurant options from KFC to Ahmeng Bistro. You can see lions without any separator glass, but they are distanced and seemed tamed and stuffed.