Explore the iconic Supertree Grove, the world's tallest indoor waterfall, and flora from around the world in the cooled conservatories at Gardens by the Bay.
Observe migratory birds and other wildlife in their natural habitat at Singapore's first ASEAN Heritage Park, Sungei Buloh Wetland Reserve.
Discover the lush rainforest on the MacRitchie Nature Trail. The highlight is the TreeTop Walk, a free-standing suspension bridge spanning 250 m and standing 25 m above ground.
Take a bumboats day-trip to Pulau Ubin, an island where Singapore's last villages, plantations and farms are still thriving. Cycle through the rustic roads and enjoy the peaceful atmosphere.
Visit the sprawling Sentosa Island, a nature and entertainment destination with many attractions such as the S.E.A Aquarium, Dolphin Island and Universal Studios Singapore.
For those with extra time, visit the Singapore Botanic Gardens, the only tropical garden listed as a UNESCO World Heritage Site. For those with less time, consider skipping Pulau Ubin and heading to Jurong Bird Park, home to over 5,000 birds from 400 species instead.