Fallout 4: Exploring Far Harbor

A brand new look at the Far Harbor DLC which is coming to Fallout 4 on May 19th and costing £19.99 for those outside of the season pass. (Edit: DLC now available via this link on the Xbox One store.)

 "Far Harbor features the largest landmass for an add-on that Bethesda Game Studios
has ever created, filled with new faction quests, settlements, lethal
creatures and dungeons. Become more powerful with new, higher-level
armor and weapons."