Faxaflói in the context of Reykjanes

Reykjavík is the capital and largest city of Iceland. It is located on the southern shore of the Faxaflói bay in southwest Iceland and has a latitude of 64°08′ N, making it the world's northernmost capital of a sovereign state. Reykjavík has a population of around 139,000 as of 2025, and the surrounding Capital Region has a population of around 249,000, constituting approximately 64% of Iceland's population.

According to Landnámabók, the settlement of Iceland began in Reykjavík when Ingólfur Arnarson arrived from Norway in the year 874. For over 900 years following this, there was no urban development; the city was officially founded in 1786 as a trading town and grew steadily as it transformed into its current state as the centre of Iceland's cultural, economic, and governmental activity. It is popular with tourists and is consistently ranked as one of the cleanest, safest, and most environmentally friendly cities in the world.

Breiðafjörður (Icelandic: [ˈpreiːðaˌfjœrðʏr̥] , lit. wide fjord) is a large shallow bay of the Irminger Sea, about 50 km (31 mi) wide and 125 km (78 mi) long, to the west of Iceland. It separates the region of the Westfjords (Vestfirðir) from the Snæfellsnes peninsula to the south. Breiðafjörður is encircled by mountains, including Kirkjufell and the glacier Snæfellsjökull on the Snæfellsnes peninsula, and the Látrabjarg bird cliffs at the tip of the Westfjords. Numerous smaller fjords extend inland from Breiðafjörður, the largest being Hvammsfjörður at its southeastern corner. An interesting feature of the bay is that the land to the north was formed about 15 million years ago, whereas the land to the south was formed less than half that time ago.. Breiðafjörður therefore was formed by tectonic movements, and all the islands and skerries were made by volcanic eruptions to form ridges and craters that mostly line up in an east-west position.