from December 23rd to 31st? wow, that's a great time to be in Doha. I guess you are searching too early to plan your time with your family, my suggestion is to check towards end of November, and you can find out a lot of events that would be going on. Simply, during winter, I just think of a BBQ with friends and family at the Wakra Beach, else camping in the dunes en route to Messaid...partay in hotels during Christmas eve? there would be lots of them...just keep your search on!