(CNN) Well, that was a slap in the face.

An Instagram user has uploaded video that shows a seal swimming up from the depths, armed with an octopus, which it flings across the face of an unsuspecting kayaker.

Geo-tagged off the coast of Kaikoura on New Zealand's South Island, paddler Kyle Mulinder, along with a number of other kayakers, is seen on the footage watching a seal swim underwater, hunting the octopus.

As they chat about the seal, it can be seen surfacing next to Mulinder's kayak, before launching out of the water, prey in mouth, to deliver an almighty slap to the Kiwi.

Mulinder is momentarily taken aback by the attack before shouting out in surprise.