The Dog is an advanced Bay of Islands drift along the western side of an island where current pushes divers beside a steep, colourful wall. The site is known for gorgonian-covered rock, a black coral tree near the deeper section, and fast-moving schooling fish that stack up in the flow. It is a committing dive that rewards confident drift procedures, sharp buoyancy control, and comfort in blue water while watching for pelagics and the occasional shark moving through the current line.