Not at all uncommon to see Broadies on the surface. Off the coast of Peru, they are targeted with kites and baits whilst cruising on the surface.Because they generally hunt and swim at great depths, they quite often come to the surface to sun themselves , apparently for warmth. There are many reports of game fish acting strangely on the surface after eating oceanic toads. The chemicals that are a toxin for humans is a narcotic to the fish. They actively hunt them out, marlin, tuna and broadies. Kaikoura has all the attributes to be a broadie hot spot. A bit of time and effort would definiately reap big rewards.