This. Not only will you meet TONS of women, you really will help your health and well being. The smartest, best thing I've ever done is take yoga classes.Take a yoga class.
However, doing things you have no interest in just to meet women is pathetic.Go to places women go. Yoga...Pilates...wine tasting...artsy/craftsy stuff...
Meetup is great. All types of groups and always something going on. I use it.If there is a street near you where there are boutiques, antique shops, etc. you will find tons of women, although they tend to be the "artsy-craftsy" type.
Then there's always meetup dot com.