I've cracked it! I take the car! No, no, let me explain.

I live on a steep hill. At the top of the hill is a beautiful park - fields, lakes, trees - the obvious place to go for a walk. But first I have to get up that hill. Temporary solution - drive the car round to the other side and take a walk from there. I don't mind the hills IN the park. Today was a brisk half-hour. Pollution-conscious members note it is just temporary, til I get going a bit better.

Thank you all, especially Frank and Robin, for getting me started. Please, please help me to keep going!