If you really want to get away from it all, consider the tundras of northeastern Russia’s Sakha Republic (formerly known as the Yakutia). This five-day wilderness escape into deep Siberia includes reindeer sledding, ice-slope sliding, fishing, hunting, and a New Year’s Eve under the warming glow of the northern lights. From $2,088. (866) 680-1373, www.yakutia.in-russia.com