Last Saturday, Adrián Simancas was kayaking with his father, Dell, in Bahía El Águila near the San Isidro Lighthouse in the Strait of Magellan when a humpback whale surfaced, engulfing Adrián and his yellow kayak for a few seconds before letting him go.

Dell, just meters (yards) away, captured the moment on video while encouraging his son to stay calm.

“Stay calm, stay calm,” he can be heard saying after his son was released from the whale’s mouth.

“I thought I was dead,” Adrián told The Associated Press. “I thought it had eaten me, that it had swallowed me.”