Thousands of years, even 100's of years ago, we humans were outdoors most of the day, foraging for food. Thanks to technology we're starting to imprison ourselves inside - imagine yourself, minus the computer, TV or video system - we're just sitting, vegetating. So the lesson learned is, our bodies/minds crave movement and being outdoors in touch with nature, is soul enriching. Believe me I have to go out more too.
Is there a natural wildlife area you can visit? Just because we're adults, doesn't mean we lose the ability to appreciate what we loved as children. So go find a place where there's frogs. My daughter also loves frogs and wildlife.