Cindy, I guess that this is where my reputation for eccentricity serves me well, because nobody blinks an eye when I mention anything I'm doing, or plan on doing. In fact, DH & I take our grandkiddos to pick apples at the orchards every year, and I'm famous for climbing the trees (which you're not supposed to do). I LOVE cycling, and discovered, quite happily, that you really never do forget how: it had been years when I started riding again @ 4 years ago. Okay, the rub is that the hiking, some rock climbing, and other physically active stuff like gardening and playing badminton or volleyball are all things that I do with either DH and/or my children and grandchildren. And, most of them require at least a modicum of decent weather, which isn't easy to come by up here in the New England arctic. I tend to get lethargic and go into hibernation mode in winter - thus my grumbling and kvetching while I do my one-mile walk with Leslie every morning! But, while my DH, my children and grandchildren don't expect any less of me when it comes to getting out there and acting up (again, I am a creature that is greatly impacted by weather conditions), I'm afraid that I'm starting to notice that people in my own age group (except for these wild women who call themselves the "Golden Girls"...

) DO tend to look askance at me, DO seem to see themselves as older, now, than I see myself. I think Jane's advice was good - about seeking out people with similar interests - maybe at the Y or maybe by joing CURVES or some other fitness center, or just taking up some activity that you really and truly enjoy, and see who you run into while doing it. I'm honestly not so sure about the senior center idea. We're all over 50 here, but I don't think we're quite ready to identify ourselves as bona fide "seniors". And, I suspect that if your friends aren't out there hopping and skipping around with you, people even older than they are might not be the first avenue that I'd try. But that's just me. Incidentally, my sister is 75 this year, and she still bicycles around her little town in North Carolina, and visits up here in time to go with us to the apple orchards. (She stopped climbing a year or so ago, though).
Anyway, good luck m'dear. Ooops. One other thing. To combat loneliness, I mean. My DH is retired - has been for almost 2 years now, but I'm not - which makes for rather long days for him, with only errands to run and housework kind of things to attend to. He's an artist (retired from a career in software engineering) so that gives him something to do, along with various and sundry carpentry projects around the house. But HE was feeling a tad isolated, too, and recently became a volunteer "historical interpretor" at Old Sturbridge Village - a reconstructed town circa 1835. This gives him the opportunity to stroll about the village in costume chatting with visitors and making new friends among the volunteers and staff. He's working, too, on collecting paintings and art from that period to create a new exhibit. Cindy, you might want to look into what volunteer opportunities might be available in your area. It's a wonderful way to do what you enjoy and develop some new friendships and such.
And there you have MY fifty cents.

Have a great day!

Z