Lighting the tree, singing carols, meeting Santa—these are all the ingredients of a downtown holiday celebration. And the free Tree Lighting and Sing Along at the Lower Lake School House and Museum in Lower Lake has them all. The annual event will be held on December 6 at 6 p.m. See facebook.com/lowerlakeschoolhousemuseum for more information. Meanwhile, the Upper Lake Lights Parade will include not only the aforementioned seasonal staples, but also, as the name implies, a parade of vehicles dressed up in illuminated holiday finery. That event happens on December 7 at Redbud Park in Clearlake, with the tree lighting at 6 p.m. and the parade at 6:30 p.m. Go to lakecounty.com/event/upper-lake-lights-parade for details.