2.4K views · 118 reactions | Newly erupted lava can stay hot for years. Following the eruption of Cumbre Vieja volcano in La Palma, Spain, it's Juan Carlos’ job to identify the coolest areas so engineers can plan essential services like gas and water pipelines to communities cut off by the eruption. Journey with Juan into the heart of this hostile environment in brand new episodes of Europe From Above, Sundays at 8pm, only on National Geographic UK. | National Geographic UK | Facebook