Question: Where does the blue lagoon water come from?

context: The Blue Lagoon is a geothermal spa in southwestern Iceland. The spa is located in a lava field near Grindavík on the Reykjanes Peninsula, in a location favourable for geothermal power, and is supplied by water used in the nearby Svartsengi geothermal power station. The Blue Lagoon is approximately from Keflavík International Airport, and is one of the most visited attractions in Iceland.
question: Where does the water in the Blue Lagoon in Iceland come from?|Where did Iceland's Blue Lagoon water come from?|Where does the blue lagoon water come from in Iceland?
short_answers: Svartsengi geothermal power station
nearby geothermal power plant Svartsengi
Geothermal power plant
Svartsengi
geothermal power station
context: No context provided
question: Where does the blue lagoon estuary's water come from?
short_answers: Umgeni River

Answer: There are several Blue Lagoons in the world. In southwestern Iceland, the Blue Lagoon is a geothermal spa. The lagoon is man-made and is a byproduct from the nearby geothermal power plant Svartsengi where superheated water is vented from the ground near a lava flow and used to run turbines that generate electricity. In KwaZulu-Natal, South Africa, the blue lagoon estuary's water comes from the Umgeni River.