What you also need to know is the law regarding the new Coronavirus Restrictions.
The Health Protection (Coronavirus, Restrictions) (England) Regulations 2020
The Health Protection (Coronavirus, Restrictions) (England) Regulations 2020
There is nothing in Regulation 6 about how long an exercise or how many times a day can occur, there's also no specifications as whether you can drive to a place to do that exercise.
In fact everything else is just
ADVICE
See
https://www.gov.uk/government/public...ay-from-others
The first thing it says is Guidance - not law (Guidance: 1. advice or information aimed at resolving a problem or difficulty, especially as given by someone in authority)
https://www.telegraph.co.uk/news/202...oppers-buying/