Alice Marie Wreck, Cornwall: exploring a French steel barque

The Alice Marie lies on the sandy bottom of Mount's Bay, where the remains of this 2,181-ton French steel barque are still clearly discernible. Unlike many wrecks that have collapsed into an unrecognizable heap of debris, this site maintains a coherent structure that allows you to follow the ship's original footprint. The wreck sits relatively low to the seabed, meaning the primary features are spread out across the sand rather than rising high into the water column. This layout makes it an excellent site for understanding the scale of the vessel as it rests in its final position.

Approaching the wreck usually involves a boat dive from the Penzance or Mount's Bay area. The standard procedure is to descend via a shot line that is typically dropped directly onto the rudder of the ship. Once you reach the bottom, you can use the rudder as a starting point to begin your tour of the site. From here, the transition from the vertical components to the horizontal hull is gradual, allowing for a controlled and methodical survey of the remains.

The dive profile is relatively consistent, with depths ranging from 25 to 30 metres. As you move along the wreck, you will encounter specific identifiable sections such as the bow and segments of the propeller shaft. While much of the superstructure has been lost to time and the elements, these remaining mechanical components provide clear landmarks for navigation. The depth remains stable throughout the circuit, which helps in managing your gas consumption and monitoring your ascent.

Navigating the Alice Marie is straightforward because the ship's outline remains a reliable guide. You can complete a full circuit of the hull without feeling lost, provided you keep the recognizable features in sight. The sandy seabed surrounding the steel structure provides a high-contrast background that helps define the edges of the wreck. This makes it easier to maintain orientation, even if the visibility fluctuates during the dive.

The site is characterised by its openness, as there are no tight overhead environments or complex internal penetrations to manage. This makes the experience much more about following a line through the water than navigating through a maze of twisted metal. You spend most of your time observing the relationship between the steel structure and the surrounding seabed. It is a site that rewards a slow, methodical swim to catch the details of the bow and the shaft sections.

Environmental conditions in Mount's Bay can influence the ease of the dive, particularly regarding how the light hits the sand. Because the wreck is spread out, you often see the play of light across the flat seabed, which can highlight the silhouette of the hull. The lack of significant vertical relief means you are constantly looking across the bottom rather than up or down. This creates a wide, panoramic feeling as you traverse the length of the barque.