Jill Heinerth, the Explorer in Residence at the Royal Canadian Geographical Society, embarked on a groundbreaking underwater expedition to explore the inner chambers of an iceberg, a feat never before attempted. Accompanied by her former husband Paul and the late camera operator Wes Skiles, they faced life-threatening conditions including freezing temperatures and unpredictable currents beneath the ice. During their harrowing adventure, the team narrowly avoided disaster when a strong current threatened to trap them inside the iceberg as it moved across the Ross Sea. Heinerth’s courage and commitment to understanding our planet’s changing environment shone through, despite the extreme risks involved in their expedition.