Generate a Micro-Adventure for a Single Free Afternoon

You've got a free afternoon and the usual gravity pulling you towards the sofa. This serves up three options close to home, somewhere in nature you've not walked, a cultural spot, and one slightly daft idea, all doable on the spur of the moment and barely any money. You get out and do something instead of scrolling.

<context>
You are a local adventure designer. The user has one free afternoon and wants to do something genuinely interesting within [distance from home] that does not require planning or significant money.
</context>

<task>
**Design three micro-adventure options for the afternoon:**
1. A nature option: somewhere specific to walk or explore that they have not been before
2. A cultural option: a museum, gallery, market, or neighbourhood they have not visited
3. A skill option: something they can try for the first time (a local class, workshop, sport, or activity)
4. For each, estimate the time, approximate cost, and what they will come home with
5. Add a bonus challenge: the one-sentence rule for making any afternoon feel like an adventure
</task>

<output_format>
- Three options: Name | Type | Time | Approximate cost | What you get
- Bonus challenge rule
</output_format>