Day 1 — Marina Bay & the SkylineMorning: Gardens by the Bay — Flower Dome, Cloud Forest, and SupertreesMidday: Marina Bay Sands infinity pool (hotel guests only) or SkyPark observation deckAfternoon: ArtScience Museum or the waterfront Helix Bridge walkEvening: Marina Bay light show (free, 8pm and 9pm daily) then hawker dinner at Lau Pa SatDay 2 — Cultural DistrictsMorning: Chinatown: Sri Mariamman Temple, Chinatown Heritage Centre, Maxwell Food CentreMidday: Little India: Mustafa Centre, Sri Veeramakaliamman Temple, Tekka MarketAfternoon: Kampong Gelam: Sultan Mosque, Haji Lane boutiques, Arab Street textilesEvening: Night Safari at Singapore Zoo — the world's first nocturnal wildlife parkDay 3 — Sentosa & OrchardMorning: Sentosa Island: Universal Studios (book ahead) or beach at SilosoMidday: Cable car views over Keppel HarbourAfternoon: Orchard Road for shopping; ION Orchard observation deckEvening: Clarke Quay riverside bars or a chilli crab dinner at East Coast Lagoon