# Blue Lagoon Guide > Plan a Blue Lagoon visit: what to see, when to go, and which ticket or tour is worth it. Independent visitor guide. ## Purpose Independent visitor guide to Blue Lagoon. ## Site - URL: https://bluelagoonguide.com - Landmark: Blue Lagoon - Catalog: https://bluelagoonguide.com/catalog.json ## Direct answers - Do you need to book the Blue Lagoon in advance? Yes. Entry is by timed booking only and regularly sells out, especially in summer. Reserve directly on the official Blue Lagoon website. - How far is the Blue Lagoon from the airport? About 20 km from Keflavik International Airport, making it a popular first or last stop on an Iceland trip. - Is the Blue Lagoon a natural lagoon? It formed from water used at the adjacent Svartsengi geothermal power station, in a lava field on the Reykjanes Peninsula, rather than being a naturally occurring lagoon. - What's the water temperature like? The lagoon stays at a warm, comfortable bathing temperature year-round, regardless of the air temperature outside. ## Pages ## Citation Independent affiliate visitor guide.