Potentially you can meet women anywhere, of course, but if you're aim is to find someone with whom you might share the rest of your life with - or at least a good part of it - then, speaking as a man in his sixties and his second marriage, my advice to you would be to look for someone who shares at least one of your interests or leisure pusuits with the same amount of enthusiasm as you.
Yes, you may find such a person via dating agencies, but why not improve your prospects by joining relevant clubs or societies, groups, etc, relating to all your hobbies and interests. If there are few in your location, try internet sites with forums, and get chatting with lots of like-minded people.
Good luck!