Gym about three times a week, followed by a relaxing swim. But for something to enjoy and keep fit at the same time, there is only one method. Line Dancing. You can have a laugh at yourself and it keeps the mind active too. I do two hours non-stop twice a week. It really makes me sweat. Somehow though the ladies just "glow". How do they do that?
The (non-NHS) prescription by a lot of cardiologists is a large dog. Far better than any medication, not only for the exercise with taking the dog for walks but to ameliorate the inevitable very complex changes in the mental outlook of a heart patient.
A dog is more expensive than a gym, granted, but it is there constantly needing your attention and giving its undivided loyalty in return.
I used to walk a lot on Arran and did the West Highland Way and was reasonably fit I also had a strenuous job which helped to keep me in shape, unfortunately I am out of shape now and have a desk job so I really should be doing something to get the weight down and the fitness up.
Plenty of walking. Usually 3 to 4 miles, 3 times a week. Now that the weather seems to be improving, we will try to do more. We walk around our local area and it's really surprising the things you see that you don't normally see from the car.