Today is your day Boomer! The current rage for Boomers who want more exercise seems to be electric bikes. And while I like the idea, me...myself and I, still prefer the old-fashioned mountain bike with no extra power. Great for the legs and great for the heart! But maybe you should look at this picture and consider my other vice....kayaking. I own two small recreational kayaks that are great for simple lake/ocean paddling, small rivers, and fishing. They are easy to carry and transport....I just slide them in and out of the back of my truck, and you can bring a spouse or friend. They are also way cheaper than electric bikes....ranging from about 350-1500 dollars. But I do recommend you pay a little more and get one with a good high, solid, adjustable back rest. Your back will thank you after about a half hour.....and whatever you do, I would not recommend the almost-backless warm water kayaks you see at resorts. As well, kayaking exercises different muscles and provides variety in your daily retirement activities....which most of us crave. Try it. Cheers!