Level 8 Valued Member
I like beach runs as well. With my OA I can still manage sand sprints due to the extra padding from the sand, just not so fast, but that's fine.400s, death on two legs. (nod to the great Freddie Mercury and Queen)
For health - with no must run a personal best or must run 5 miles more than yesterday, your world is governed by - as it should be for all runners but - being pain free and easy. No need to beat yourself up. Just go out and run.
Can't beat a run on a beach or the woods, out in nature anyway, leaving the pounding and traffic fumes well behind.
Keep it all very easy. I dunno but as a general thing as I've also heard a lot of ex jogging pounders of the pavement say - 45 mins to 1 hour is good. About right is good enough isn't it? Build into that. Nice and easy.
Accrue some volume and if you fancy add in a couple of faster runs here and there.
I do nice easy runs, 45 mins or so, with my dog sometimes but off road.
Bit of aerobic, relaxing, no hassle. Thing is, if you enjoy it, it's good for you.
As a pedantic sprinter/running mechanics nerd - focus on the technique of running, forget everything else. You'll be a better runner, less achey pains, develop a springy stride, be more efficient and enjoy it even more.