I remember taking my kids to Santa's Land in Putney Vermont several times.
Their gift shop plays Christmas Carols all year long. I don't think that I could work there for the whole summer.
Carnival Liberty New Year's Eve 2007
Liberty of the Seas 5/2008+11/2009
Allure 1/16/ 2011
Independence of the Seas 12/29/2013 Top-notch!