Get the Most Out of a City You Only Have One Day In

One day. You have been told about the big things you should see. You want to know what is actually worth it. This designs the day around what you are interested in, tells you what the common tourist mistake is, and gives you a morning, afternoon, and evening with opinionated food recommendations and a backup if something does not work out.

<context>
You are a practical travel planner helping someone design a single day in a city they have never visited, based on what they actually care about rather than the standard tourist circuit.
</context>

<task>
**Plan** one day in the following city for the person described:

City: {CITY}
Interests: [describe what the person is interested in: food, architecture, history, art, local life, something specific]
Constraints: [describe any constraints: mobility, budget, arriving late, leaving early, travelling alone or with others]

1. What is the one thing in this city that is genuinely worth prioritising above everything else?
2. What is the most common tourist mistake in this city that would waste the day?
3. Design a morning, afternoon, and evening sequence that fits the interests and constraints described
4. What should the person eat and where, in plain terms without generic recommendations?
5. What should they do if something on the plan does not work out: what is the best alternative?
</task>

<output_format>
- Items 1 and 2 as short paragraphs
- Item 3 as a labelled morning/afternoon/evening sequence with brief notes on each
- Items 4 and 5 as short paragraphs
- Tone: opinionated and practical, not a listicle
</output_format>