Tens of thousands of sharks are roaming off the coast of Florida at the moment. The danger, however, is not like what most people would expect.

According to Buzzfeed, Dr. Stephen Kajiura of Florida Atlantic University took a video of thousands of sharks swimming in Palm Beach, Florida Coast as they migrate for the winter season. Kajiura is observing how the blacktip shark, a common species in Florida, is migrating for the winter. The biological sciences professor said that part of the research includes aerial surveys, which helped him monitor the movements of the sharks. While he was studying the sharks, he spotted a great number.

CBS 12 reported that Kajiura has been featured before on “Shark Week” and captured the video 500 meters over the Atlantic Ocean on Feb. 12. His aerial surveys of the black tip shark migration covered the coastline from Miami Beach towards the Jupiter Inlet. He noted that he saw very few sharks in Miami-Dade and Broward Counties, as well as the south of Boynton Beach. However, he said that there were tens of thousands of sharks from Palm Beach to Singer Island. Off the Jupiter Inlet, there were also several sharks swimming.

“It’s so cool. There are literally tens of thousands of sharks a stone’s throw away from our shoreline. You could throw a pebble and literally strike a shark. They are that close,” said Kajiura.

In the video showed by CBS 12, the sharks appeared like several tiny black dots against the blue background from the air. There was a thick line of sharks going all around the coastline.

However, people should not be too scared of going to the beach. Kajiura said that hopefully, the phenomenon is a great outlet to let the public know that the sharks are not out to get them. Sharks migrate in such a manner every year and rarely bite humans in Florida during their trip. He added that there are relatively fewer bites on people compared to the number of sharks present.

Kajiura is trying to determine why sharks are particularly attracted to Palm Beach County. The sharks are expected to be off the Florida coastline in the next few months. The professor will also try to learn more about the blacktip shark and other related activities and factors during their migration.

More updates and details on the Florida Coast sharks are expected soon.