A humpback whale struck the boat in the middle of the night and it sank. A humpback whale struck the boat in the middle of the night and it sank. While anchored, they watched a humpback whale feeding before it left the cove and the parents called it a night. Camera Icon The family were on an 'adventurous sailing trip' at Glacier Bay National Park in Alaska when their child heard a thud. Scientists confirmed that the skin was from a humpback whale, which likely would not have been injured from the collision with the boat.