I am a year off 60, and am in great shape.
I have had an active lifestyle, playing sport in teams at school, and Uni. Cycling everywhere as a young woman in my 20s til I could afford a car.
Skiing holidays, walking holidays where 10 to 12 miles a day is normal, Hardly ever have a whole day sitting by a pool or on a beach on holiday
Have also done exercise classes since being a student, and have done aerobics, spinning and added yoga and Pilates in the last 10 years. Needed to do 2 classes a week to make belonging to the gym worth it.
Just back from a week hiking and did 11 miles one day, and 6 to 8 the others.
Will be booking skiing for Next winter soon.
Also garden a lot.
I have a normal BMI, very low blood pressure, and the only medication I am on is HRT and antihistamines for hayfever.
I feel strong and fit and about the same as I did in my mid 40s.
So yes, a daily walk of 40 mins and a daily Pilates 20 mins and some gardening, and active holidays is setting me up for an active retirement