Bowling can seem like a default option for a potential outing, but it's an underrated activity for groups. First off: you can't be bad at bowling. Yes, some people are better than others, but if you stink at it and bowl a 26, so what? Laugh it off and bowl another round. Secondly, though it might not feel like exercise, bowling is an anaerobic activity that promotes more health benefits than you might think, especially when it comes to developing strength and improving flexible. How many group activities can do that, and be fun, too?