Journey into the mouth of Mount Nyiragongo, Africa's most active volcano, and stand on the shore of the world's largest lava lake. Join an international team of scientists as they climb to the volcano's peak and then rappel directly into its mouth. Their goal: to collect a fresh sample from the deadly yet mesmerizing lava lake at the volcano's heart. Standing in their way is a 1300 foot sheer vertical drop, crumbling rock walls, and a roiling lava lake prone to sudden overflow.
