Item is a photograph of the blasting of Ripple Rock, the navigational hazard in the Seymour Narrows, from a bunker position on an area hilltop. The explosion has broken the surface of the water and clouds have begun to form.

Item is a photograph of the blasting of Ripple Rock, the navigational hazard in the Seymour Narrows, from a bunker position on an area hilltop. The explosion has broken the surface of the water and clouds have grown.

Item is a photograph of the blasting of Ripple Rock, the navigational hazard in the Seymour Narrows, from a bunker position on an area hilltop. The explosion has broken the surface of the water and clouds have mostly obscured the landscape.

Item is a photograph of the blasting of Ripple Rock, the navigational hazard in the Seymour Narrows, from a bunker position on an area hilltop. The eddies and disturbances in the water around Ripple Rock are visible, before the detonation.

Item is a photograph of personnel in a bunker position on an area hilltop before the blasting of Ripple Rock, the navigational hazard in the Seymour Narrows.

Item is a photograph of the blasting of Ripple Rock, the navigational hazard in the Seymour Narrows, from a bunker position on an area hilltop. The explosion has broken the surface of the water and clouds have mostly obscured the landscape.

Item is a photograph of the blasting of Ripple Rock, the navigational hazard in the Seymour Narrows, from a bunker position on an area hilltop. The eddies and disturbances in the water around Ripple Rock are visible, before the detonation.