Most Helpful Guy
Canoe trip down a slow river. It's pretty cheap for several hours of river time. Bring snacks or a full picnic meal.
Art museum. Or other type of museum.
In winter go sledding. Build a snowman too. Then hot tea/coffee/cider to warm up after.
Outdoor photography trip.
Go to the park and swing on the swings, ride the merry go round, do teeter totters, etc.
Trip to the arboretum.
Sneak into a public pool at night after it closes. Climb the fence and go swimming.1
Most Helpful Girl
A Picnic on a cliff
a million things you could do1