Your writing task
Write 100–150 words. Your friend writes: 'I'm visiting your town next Saturday and arriving by train at ten. I'd like to see something outdoors, but I can't walk very far. Where shall we meet, and what should I bring?' Reply with a suitable plan and a bad-weather alternative.
Writing focus
Treat the friend's needs as constraints on your plan. A long walking tour would not answer this particular message well.