Continue along the Pasir Ris park connector towards Tampines and you’ll come across sprawling greenery formed by open grasslands, freshwater wetlands and a secondary rainforest. You’d never guess that this green space exists, wrapping around one of the most populous neighbourhoods in Singapore. Wade through the greens as you take on the walking trail within the sanctuary to uncover its rich biodiversity, featuring many species of birds, butterflies, dragonflies and spiders. Sit on one of the rustic wooden benches while you admire the marshes and listen to the unique sounds of wild birds – and the expressway. Only in Singapore, eh?