Have a bonfire and stargaze on a clear night
The fire holds everyone's attention at first. Later, as it settles into embers and eyes adjust to the dark, the sky takes over: a bright planet, a familiar constellation or the pale band of the Milky Way can turn an ordinary night outdoors into something much larger. Choose a legal, designated fire place with a clear view of the sky and little stray light. Check cloud, wind and local fire restrictions, bring warm layers and seating, then give your eyes at least twenty minutes away from bright white light before looking for a few known objects. Keep the fire small, supervised and well away from tents, vegetation and anything combustible; never use petrol or other accelerants. Keep water ready, observe any wildfire ban, and extinguish the fire completely until the remains are cold. Use a red-light torch so people can move safely without destroying night vision. Count it complete after sharing a controlled fire, leaving the site safe and identifying at least one star, planet or constellation. Add it if you want an evening with two natural rhythms: conversation around the flames, then quiet attention above them.