Singapore's compact size makes it possible to experience its modern skyline and natural beauty within a shorter timeframe. A 4-day trip would allow you to explore futuristic landmarks like Marina Bay Sands, Gardens by the Bay, and the Singapore Flyer. In addition, you could dedicate a day to escape the urban hustle by visiting the Southern Ridges for scenic hiking trails and spending an afternoon at the Botanic Gardens. This blend of modernity and nature will give you a well-rounded impression of Singapore.