Jökulsárlón is a large glacial lagoon in Iceland, located at the head of the Breiðamerkurjökull glacier. The lagoon is fed by meltwater from the glacier and is known for its large icebergs that float in the water. It is a popular destination for tourists, who can take boat tours of the lagoon to see the icebergs up close. The tours are operated from April to October.