A charter boat captain reportedly spotted a great white shark on Alligator Reef near Islamorada, Florida, on April 16 (video below). The shark was estimated to be about 10 to 12 feet long.
Chris Muller, the captain of the charter vessel HappyCat, said he and his first mate, Greg Schlosser, were supervising a group of snorkelers at the reef when they spotted the shark swimming in 15 feet of water around the boat, the Miami Herald reported.
Muller said he had just put the snorkelers into the water around 3:45 p.m. and went into the boat's wheelhouse when Schlosser came to tell him there was a great white shark in the water. The first mate said he believed the shark was male.
"I said, 'There's no white out there,'" Muller told the Miami Herald on April 17. "Sure enough, there it was. He was big."
After discovering the creature, Muller and Schlosser got the snorkelers back onto the boat. Muller then went into the water to shoot video of the shark, which reportedly circled the boat for about 30 to 45 minutes.
"I've never seen anything like this in my life, especially not in the Keys, and I've swam with a lot of sharks," Muller said.
Muller was chartering 13 people on the HappyCat when he spotted the giant fish. His customers were mostly exchange students from countries such as Thailand and South Korea.
He said the snorkelers were alarmed when they were first told about the shark, but they then became excited as they watched the creature swimming near the boat.
After notifying an arriving dive boat of the shark, Muller and Schlosser took their customers to a different location to swim.
"They had a good time and weren't afraid to get back into the water," Muller said of the snorkelers. "The shark didn't follow us. He stayed on the deeper, southern end of the reef."
In the same weekend, another great white shark was sighted near Key West by the Bulldog Cartel fishing team. The team reportedly shot video of the animal and posted it to Instagram on April 16, WPTV News reported.
The great white shark is reportedly rarely seen in the Florida Keys.