The Dragonfly Lake is between Marina Bays Sands and the Supertrees in Gardens By The Bay. You dont have to pay any admission fee to enter the Dragonfly Lake. Be sure to catch dragonflies resting around the lakes. Seems there's a stream coming down from the top, but I was dead tired to climb up to see what's up there. The garden is so huge, need to come here another time to explore more places in the garden. Nice to have these huge stones as benches around the lakes.Best to walk along the boardwalk around the lake in the evening where the weather is cooler.