Getting beyond Funchal by bus

[GraceSpus]

I have three full days in Madeira and will be staying in Funchal without renting a car. I would like to see more than the city, but I am trying to avoid an itinerary that only works if every connection is perfectly timed. A day trip to a coastal village sounds possible, and another for a manageable walk if the forecast cooperates. The published bus times seem possible, although I cannot tell how much time to allow for transfers, stops, and a relaxed lunch. For a first outline I found 3 days in madeira without a car and it helped me list possible places rather than commit to a rigid schedule. Would you leave the final day unplanned around Funchal, in case mountain cloud or a missed connection changes the earlier plans? A guided transfer for the walking day is one option, while another option is to keep every outing reachable by public transport. If you have visited without a car, which day trip felt practical, and what would you skip on a three-day visit? I do not mind a slower pace between day trips.