What can be seen marked in blue in the image is the United Kingdom, including Northern Ireland. As can be seen, it is an island country located in the northwest of Continental Europe. It is bordered to the north and west by the Atlantic Ocean, to the east by the North Sea, to the west by the Irish Sea and to the south by the English Channel o EnglishChannel. You have all the information in: «London Maps«.
You have all the information in: "London Maps".