Family activities for children with big age gaps

I have 4 kids, a 15, almost 16 years old boy, two twins, a boy and a girl, that are 7 years old, and a baby girl that is 4. I’d like to know about any activities fun for all the family, even though the kids’ age gaps, so i can do something with all of them rather than one at a time.

Board games, movie nights, picnics, walks, cooking, gardening?

Rafting, rock climbing, hiking. Sometimes you can find classes in the same location and time and you all do your own thing/be in your own classes. Check out your local [name_u]Parks[/name_u] and Rec programs and Libraries.