MV Callisto was on her way from Pepel in Sierra Leone to IJmuiden, loaded with 9600 tonnes of iron ore. On 24 February 1959, she passed the light ship Noord-Hinder around 23:00. Shortly after, the vessel sailed through thick fog. At 23:24, the engines were stopped, as another ship was seen on the radar. At 23:29, a blast on the other vessel's foghorn was heard. When this vessel, the Liberian ship Andros Stream, was seen, the Callisto made full speed reverse. It was too late to avoid a collision. After the collision, the Andros Stream continued without providing assistance. At 23:55, the 34 people on the Callisto embarked one of the sloops. The vessel sank exactly at midnight. The crew was rescued by the German coaster Julia at 3:30.
|Master||J. van der Zwan|
|People on board||34|
|Speed||12 knots (22 km/h, 14 mph)|
|Length||441 feet (134 m)|
|Draft||26 feet (8 m)|
|Displacement||5824 ton (2912 last)|
The wreck is upright, at a maximum depth of 34 meters, the visible remains are spread over an area of 110 by 16 meters. The midship and rear parts of the wreck are upright, the front is broken of and heeling 45 degrees to port side. The part between bow and midship is sanded.