Spanish speleologist Cecilo Lopez gives a thumbs up after being safely pulled from an underground cave in Peru.

It took more than 100 rescue workers hours of planning and hard work to free Lopez who'd been trapped for the past 12 days.

He had been exploring caves deep in the Amazon with fellow scientists when he fell into a narrow section of one of the caves.

After being rescued Lopez was given initial medical care to stabilize his back injuries before being transferred to Lima.