Last year at age of 70 years young, I did this trip:
Bike Tour near Lake Ontario and part of Erie Canal - June 2024

Plus two backpacking trips and a canoe trip in northern Minnesota.

I am a bit slower than I used to be, happy to do shorter days than before, and a bit less interested in high levels of exertion. When I was backpacking in the Rockies in my 20s, I discovered I have bad knees, so I have to limit over-stressing them. I don't enjoy these trips as much as I used to, but if you stop doing physical activity, you might find you can't restart it again. I am still happy to do tent camping, motel rooms are too confining and boring.

This past May, a medical issue popped up for me. Not being life threatening means long waits for treatment. Long bike rides are still doable, but long walks are not. I planned to be backpacking right now, but canceled that trip. Starting to think about what I will do next year when I should be fully recovered.