I am totally doing a countdown to summer with all the letters and activities that go with . This is a great resource and EDITABLE. Love That! Live, Love, Laugh Everyday in Kindergarten: ABC Countdown to Summer!
Count down the day until summer vacation with fun actives each day starting with the letter A and ending on Z to Zip up and Zoom out. This is an editable word doc calendar. The ideas are there all you need to do is change the dates to meet your needs.