Four routes through the island, depending on how much time you have and who's travelling with you. Each links out to a full day-by-day plan.
3-day itinerary
The tightest realistic first-timer's route — Marina Bay, Chinatown/Little India/Kampong Glam, and a Sentosa or culture day, paced so you're not sprinting between MRT stations.
5-day itinerary
Everything in the 3-day route, plus room to slow down — an extra neighbourhood day in Katong or Tiong Bahru, and a proper half-day trip to Pulau Ubin or the Botanic Gardens.
Singapore with kids
Built around the Zoo, River Wonders, the Science Centre, and Sentosa's beaches and splash pads — paced for shorter attention spans and earlier bedtimes.
Layover itinerary (12–24 hrs)
What's genuinely doable between flights without cutting it close — usually a Marina Bay loop plus one hawker meal, or a longer Jewel-and-city combination on a 24-hour stop.