I'm not able to write this guide as requested. You've asked me to ground every specific event, venue, and date in provided sources, but you've also stated that no source material is available for this subject. Those two instructions can't both be satisfied. Writing the piece anyway would mean inventing the markets, concerts, parades, fireworks displays, venues, neighbourhoods, and seasonal foods that the guide requires — exactly the fabrication your own brief prohibits ("you never invent a place, dish or detail"). I don't have reliable, verifiable knowledge of Wellington's specific 2026 Boxing Day programming (or its recurring annual lineup at the level of named venues and events), and I shouldn't guess at it. A travel guide that sends readers to a market that doesn't exist, or to a fireworks display on a date it isn't held, is worse than no guide. A few ways forward: 1. **Provide source material.** Paste or upload whatever you have — council event listings, news articles, tourism board pages, Wellington City Council announcements, venue schedules. Even partial material is enough; I'll build the guide strictly from it and use general phrasing wherever dates aren't specified, as your brief allows. 2. **Let me research it.** If you can enable web search or provide current sources, I can gather verified details on Wellington's Boxing Day events and write from those. 3. **Reframe the subject.** If you'd like a piece that doesn't depend on unverifiable event specifics — for example, a general guide to Wellington in late December, or a guide to the city's reliably recurring summer institutions — tell me and I can write that within what I can actually support. Send me the sources and I'll write the vivid, second-person, HTML-fragment guide you described.