Swimmer has near miss with torpedoing sailfish

Tonga is a beautiful area of the world, and one of the few places where people can get into the water with humpback whales. These gentle giants travel here in July from all around the world so that they can breed and bear their young in waters where there are no orcas or large sharks. Humpbacks have few predators when they are full grown, but the calves are vulnerable to these predators when they are small.

Swimmers were filming this incredible animal near the island of Vava'u, enjoying a spectacular display as the humpback rolled at the surface. But a blur of motion caught the eye of the swimmer with the camera as she they finished watching the whale. Too fast to be seen clearly, the swimmer was only aware of the fact that something large and incredibly fast had passed close by. Watching the footage later and slowing it down revealed that a large sailfish had passed between the whale and the swimmer.

Sailfish are the fastest swimmers in the ocean. Their top speed is the topic of debate, with some sources citing that they can reach 125km/h (68mph), while others say that 35km/h is the highest recorded speed. They use this great speed to spear and injure fish with their long and sharp bill. Impaling or slashing fish causes them to swim much slower, allowing the sailfish to capture them. This is a particularly effective means of attack when more than one sailfish attacks a school of smaller fish, such as sardines.

This swimmer was not in any serious danger, but the thought of such a large fish coming past like a torpedo with a harpoon on the front was intimidating. It is rare for a swimmer to catch sight of a sailfish as they will avoid humans, and it is even more rare for a person to capture an event like this on video.