Since it shouldn't really affect too many people who are already following the guidelines*, I'd rather they just go straight into it.
Announcing it too far ahead would just lead to even more panic buying.
*under the presumption that we'd still be able to travel to shops/go out for walks, but they'd crack down on morons congregating or flouting the advice.
As long as you're not exhibiting symptoms, then absolutely no problem with that. The briefing today mentioned how getting outside (responsibly) would help mental health.
Even my brief walk today helped me.
The beach is practically on my doorstep, but chose against it as I knew it would be busy today, Sundays always are and the sun was shining. I did go for a nice walk in the woods though, it was good for my little boy. Unless you have symptoms and keep away from others I'd say go for it.
Yeah I went out for a brief walk today up the country lanes near me, just weary of the travel thing I guess. Shouldn't be too busy Tuesday so long as chaos hasn't ensued from a lockdown before then!
Also jealous of you having the beach at your doorstep, I moved away from North Devon to Mid Devon, and I miss it so much. Especially now.