Sing along to holiday tunes played by local marching bands while socializing with friends and mingling with Lowcountry celebrities. Bring a warm blanket and pick a spot along the streets of downtown to enjoy dancing, holiday decorations, and floats. Join Santa and his elves as they ring in the merry season. Don’t forget, mark your calendars for December 16, the parade’s rain date. Downtown Summerville, W. 4th North St. to Hickory St., Summerville. Sunday, 2pm. Free. (843)821-7260, www.summervilledream.org