Designate it “quiet time” for a few days. Why not try playing cards/board games, go on a nature walk, drive around to see lights, light a tree in your house/yard, have a special meal, exchange a few small gifts, do one or two crafts etc. Unplug from phones, computers as much as possible. It can b done. While you (adults) fast why not have your children give up one or two food items every year until they reach an age where they can fast too. This is all quiet-ish stuff that children won’t get bored from. Get creative and develop your own family tradition. P.S.- Get your family (children included) in the habit of decluttering around solstice time. Take the children through their toys, clothes, shoes and give away things they don’t need/use.
Here are some more cool ideas: