Scally, I only do "softish" activities including Yoga and Tai Chi, please don't snigger lol! The sort of stuff aiming to keep me supple rather than aerobic and muscle building, see? Nope, dont get discounts...so no advice for anybody on that score.
Though I think some leisure centres discount swims for carers and over fifties sometimes. Not for me. Only swim if I am forced to and it's not an elegant sight....though I can float star shaped on my back for hours my swimming is just a joke. Despite my OH encouraging me and him being of supreme patience etc I never really perfected breathing at the same time as swimming. Which, as you may appreciate, means that I don't stand much chance of travelling in water very far. Multi tasking in water not my forte.
At which point I hasten to add I did manage to practice upturning the little sailing dinghy we once had and getting back in. Safely but Breathless!
Doesn't worry me unduly as I have reached the point in life when I only take on the challenges which excite me.
When I have more time..... Will probably get back to some dance type exercise, unsure what sort yet, have to accept my age and limit my ambitions a bit!! or not?
Simply strapped for time at the moment. Seriously strapped actually despite now no longer caring 24/7.
But might treat myself to a wee bit of horse riding in the New year all being well. I enjoy the partnership thing with animals. I didn't put that across well did I?
dream of swim with dolphins? Probably not! And would worry where they had been bred and wot sort of life the dolphins were having, unnatural etc.
And always make time for walking too which is my favourite ..... Like being out in all weathers. Plus dog.
Currently slowing down with a minor foot problem

but this shouldn't stop me for long.

oh my, I am in boring mode. Sorry.
Exercise at whatever level is the best thing we can do to maintain mental health, yeah?
And means we can scoff a Mars bar with no guilt.