The Reykjanes Peninsula is a volcanic region in southwest Iceland, located just west of Reykjavík and extending out into the Atlantic Ocean. It sits directly on the Mid-Atlantic Ridge, where the North American and Eurasian tectonic plates are slowly pulling apart. Because of this, the area is geologically very active, with young lava fields, fissure volcanoes, frequent earthquakes, and recurring volcanic eruptions, especially since 2021. The landscape is stark and dramatic, shaped by black lava, moss-covered fields, steaming geothermal areas, and very little vegetation. Well-known geothermal sites such as Gunnuhver and Krýsuvík show boiling mud pools and rising steam, while the Blue Lagoon, one of Iceland’s most famous attractions, is also located on the peninsula. Towns like Keflavík, Grindavík, and Vogar are part of the region, and Keflavík International Airport serves as Iceland’s main gateway to the world. The Reykjanes Peninsula is important both scientifically and culturally because it is one of the few places on Earth where the movement of tectonic plates can be clearly seen above sea level. For many visitors, it is the first and last part of Iceland they experience, offering a raw and powerful introduction to the country’s volcanic nature.