The Arctic is the northernmost part of Earth. It can be defined either as everything within the Arctic Circle, or all northern areas where temperature never rises above 10 degrees C.
The Arctic is sparsely populated. Some major centers of population are:
English is the dominant language at international expeditions. Besides national languages there are several indigenous languages.
Regular flights to most big cities.
The cold, polar bears, snow blindness and desolation are the main dangers.
You will need to go south.