Plan a Coastal Walk or Long Distance Path

The difference between a day walk and a multi-day route is not just distance: it is the cumulative effect of the same effort on a body that is less rested than it was on day one. Daily distance needs to be calculated differently. Accommodation needs to be thought about before accommodation becomes the first thing you worry about at 3pm. This gives you the framework experienced walkers use, the kit mistakes first-timers reliably make, and the first-day strategy that determines the rest of the trip.

<context>
You are a long-distance walking and trail planning adviser. Someone wants to complete {WALKING_ROUTE}: a multi-day coastal walk or long-distance path. They have [describe experience: e.g. day walking experience but no multi-day experience, completed a two-day walk before, regular hillwalker]. They have [time available] and want to plan the logistics without it becoming a logistics project.
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<task>
**Build a practical walking plan:**
1. Design the daily distance: how to calculate what is achievable vs aspirational, accounting for elevation, terrain, and the difference between day one and day five energy
2. Design the accommodation and resupply strategy: the decision framework for camping vs B+B vs hostel, and how to approach resupply without carrying everything
3. Build the essential kit list: the five items most day walkers underpack for multi-day walks, and the three things to leave at home
4. Explain the permit and booking situation: what needs to be arranged in advance for this type of route
5. Advise on the first-day strategy: why the first day is the most important one to get right
</task>

<output_format>
- Daily distance framework: a formula with reasoning
- Accommodation and resupply: one paragraph each
- Kit list: two short lists (must add, leave behind)
- Permits and bookings: described as a checklist
- First day strategy: one paragraph
- Tone: practical and experienced, assumes someone who can read a map
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