It is good to know a bit about the holiday season and the end of the year in Iceland.
Boxing day is a holiday just like Christmas day. Christmas eve and new year´s eve are half days. So make sure to plan ahead regarding tours and meals.
Icelandic Christmas is still a great time to visit. During Icelandic Christmas Icelanders ignite their Christmas lights to illuminate the city giving the city a special warmth.
Self driver tours may be a challenge since the roads are likely to be snowy and icy. So joining a tour of the golden circle or south coast by bus may be the safer option.