Bay seniors reluctant to join the mobs caravanning to the snowy Sierras can find white stuff closer to home. The Hyatt Regency in Embarcadero Center not only has a 30-foot tall tree, a snow village and 300,000 lights but daily “snow falls” in it’s 17 story atrium. Thank goodness the snow is not the cold, wet real thing, but fluttering, foamy flakes. Drifting down twice a day now through December 30. Free.