The best street food on the planet, and a transport system that makes the chaos navigable.
This is a shape, not a schedule. Each day has two anchors and a lot of slack, because 3-day itineraries that book four things a day fall apart the first time lunch runs long. Move things around freely — the neighbourhoods are grouped so that walking between stops actually works.
Street food is the great group equaliser — everyone orders separately for a few dollars and nobody's arguing over a shared bill. Fix one meeting point per day; phones die fast in the heat.