(CNN)-- A Cape Cod lobster diver is safe Friday, following a fluke encounter with a humpback whale that nearly made him the leviathan's lunch.

Michael Packard was diving off the coast of Provincetown, Massachusetts, Friday, when the capital cetacean caught him unawares.

"I got down to about 45 feet of water, and all of a sudden I just felt this huge bump, and everything went dark," Packard told CNN affiliate WBZ. "And I could sense that I was moving, and I was like, '"Oh, my God, did I just get bit by a shark?'"

"Then I felt around, and I realized there was no teeth and I had felt, really, no great pain," Packard said. "And then I realized, 'Oh, my God, I'm in a whale's mouth. I'm in a whale's mouth, and he's trying to swallow me.'"