Singapore is an ever-expanding city with diverse districts, forgotten temples, and hidden parks. Popular tourist spots such as Robertson Quay and Clarke Quay draw in crowds in the evenings, and families can find entertainment on Sentosa Island. Architectural creations such as the Henderson Wave Bridge and Alexandra Arch make walking a pleasure; indeed, Singapore has linked several green spaces to create seamless outdoor areas, including a Forest Walk and Canopy Walk.
For those who wish to further explore nature areas, the McRitchie Reservoir and Pulau Ubin Island (and its Chek Jawa Wetlands) are options; the areas have thriving paddling, mountain biking, and climbing communities. For culture and heritage, there are numerous temples, the Chinatown Heritage Center, the Malay Heritage Center, the Changi Musuem and Chapel, Katong Antiques House, and numerous other options.
Don't overlook some of the public swimming complexes (eg Jurong East and Jurong West Complexes), which have very low admission rates and offer wave pools, large slides, lazy river, and more.