It's a nicer post but logic would say it's using popular places that is the problem, not the driving, That force seems concerned about driving leading to crowding.
2 or 3 days ago Michael Gove was saying driving a short way to exercise was fine.
In a similar timeframe, a Cabinet Office spokesperson was on record saying the same.
The law says exercise is a reasonable excuse to leave the house. It doesn't restrict types of exercise, it doesn't restrict driving, it doesn't limit the length of time or frequency of that exercise. Our principle of law in the UK is that you can do anything you like unless the law prohibits it - which therefore means you can drive to exercise because it's not prohibited.
Despite this, multiple police forces are saying you cannot drive to exercise but this doesn't appear to backed up by anything.
Driving isn't the only example. Most people think 'the rules' allow four reasons to leave the house (exercise, medical, food, work) but the law gives 13 reasons!
To be clear I am NOT driving. I am locked up at home going out for one walk a day. But I can still understand why people are struggling with 'the rules'.