Fracking or hydraulic fracturing is a method utilized by oil and gas companies to increase production of oil or gas from a well that would otherwise exhibit a low flow rate usually due to the geologic rock formation being too dense to allow for the economic recovery of hydrocarbons.
The Vikings lived in Scandinavia (mainly Norway, Sweden and Denmark), and in Iceland. They ventured (and proliferated) as far as Italy and the Mediterranean, but more commonly sailed to Ireland, Northern France, England, and even North America. Norway, Sweden, Denmark.
Nevertheless, all the seasons of Vikings have been filmed almost entirely in the Wicklow county of Ireland. Within a very short range near the studio you find rugged mountains, fairytale-like forests, gorgeous lakes and the seaside.