@chomalungma
If I was reading this properly,
I am allowed to take exercise alone, with one or more members of my household or in a public outdoor space, with one other member of a household who is not a member of my household.
Am I allowed to exercise alone? (If you read this paragragh and sub paragraphs properly)
A bit late in replying and apologies if somebody has already replied (haven't RTFT).
Yes, you are allowed to exercise alone.
You are allowed to exercise anywhere at all outside that you personally can lawfully gain access to.
The same applies when you are exercising with members of your household.
The difference comes with other households that aren't linked. You're only allowed to exercise together in a public place.
So, for example, if you have a garden or backyard then you can exercise there alone or with your family.
However, you are not allowed to exercise in your garden with anybody else - so you can't invite your neighbour over to jog around your back garden - as your garden isn't a public place
Hope this makes sense.