Why separate days: Bay vs Sentosa / Mandai
Marina Bay is a waterfront walk axis; Sentosa is island + tickets; Mandai is northern wildlife. Same-day stacking rushes every stop. Bay evening can end in Chinatown — not USS.
Morning: ArtScience, Helix — timed shows as notes only
Enter ArtScience at opening, walk Helix Bridge to the Esplanade before noon. The museum rotates timed / collab shows — check official dates and separate tickets before you go. We deepen guide notes only; we do not invent permanent places for short runs, and we do not guarantee schedules. No show you care about: façade + half a Helix waterfront loop is enough — keep time for Flower Dome or Supertrees.
Afternoon to dusk: Flower Dome, Supertrees
Flower Dome is more comfortable later. Supertree light shows are usually evening slots — trust the day’s board. Sky Park is separate; hotel-guest rules differ from tickets. Bay night lights / limited installs are same-day options only — not permanent must-sees on a checklist.